Is one piece starter deck profitable to sell on Amazon United States?

The niche generates $230K/yr across 43 tracked products. 6 of 8 products launched in the last 360 days are still selling. 90-day search growth is -18.6%. Flapen's verdict: Worth a look (52/100).

How competitive is the one piece starter deck niche?

14 brands and 228 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in one piece starter deck?

Top complaints mined from reviews: Value For Money, Size-Overall, Ethical Trade/Fair Trade. The return rate is 1.2%.

When does demand for one piece starter deck peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the one piece starter deck niche?

Listings span $11.44–$84.27; the average listing price is $36.34 (sweet spot $15–$100). The average incumbent carries 151 reviews — the moat a new listing must climb.

one piece starter deck

Worth a look

Shows a sweet-spot price point ($36.34 avg), but soft demand (-18.6% this quarter) keeps it on the watch list.

Avg price

Incredible$36.34

avg listing price — sweet spot $15–$100

Review moat

Great151.33

avg incumbent reviews — the moat a new listing must climb

Returns

Great1.2%

return rate — above 5% kills the launch gate

Price range

Great$11.44–$84.27

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Good40%

top-5 click share — leaders hold, buyers still browse

Market size

Okay$230K

$230K/yr · 299K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Conversion

Okay2.1%

search→purchase rate — share of searches ending in a sale

Brand share

Bad91%

top-5 brand share — brand-locked demand

Growth

Bad-18.6%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United States niche tracking, one piece starter deck is a $230K/yr Amazon United States market (299K searches/yr). The top 5 brands hold 91% of demand. Verdict: Worth a look — 52/100.

Data updated Jul 31, 2026 · scored weekly · How we score niches

one piece starter deck market data

Units sold / yr: 8K–10K; avg 100–250/product
Revenue / yr: $291K–$363K; units × avg price
Conversion rate: 2.1%
Avg BSR: #24,248
Page quality: 0%
Prime: 79%
Sponsored: 40%
Out of stock: 9.8%
Avg brand age: 31 months
Avg seller age: 154 days

Competition & brand share

The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 rising

Sellers

228

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

40%

Top 20: 78%

Open market

BANDAI76%
Bandai Namco5%
Banpresto4%
Ripple Junction3%
Generic3%
GTS Distribution2%
Open — no brand owns it (8 brands, 7%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -18.6% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top one piece starter deck search terms

one piece starter deck92K/yr -9.6%2.1% conv.
one piece tcg starter deck37K/yr +8.7%1.3% conv.
one piece deck32K/yr -49.3%0.6% conv.
one piece starter deck english23K/yr -15.0%2.2% conv.
buggy the clown26K/yr -30.2%0.6% conv.
one piece cards starter deck13K/yr +0.3%2.0% conv.
one piece card game starter deck19K/yr -42.3%1.6% conv.
one piece starter decks10K/yr -14.2%1.5% conv.
buggy one piece11K/yr -22.1%0.3% conv.
one piece learn together deck set10K/yr -29.4%0.9% conv.

All search terms

Top one piece starter deck products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

One Piece Card Game Card Game Starter Deck - ST-25 Buggy

BANDAI$21.304.5★146 rev

One Piece Card Game Card Game Starter Deck - ST-29 Egghead

BANDAI$43.194.7★33 rev

One Piece Card Game - Starter Deck 22: Ace & Newgate (ST-22)

BANDAI$20.484.6★174 rev

One Piece Card Game Card Game Starter Deck - ST-27 Marshall.D.Teach

BANDAI$20.404.4★128 rev

One Piece Card Game Card Game Starter Deck - ST-26 Monkey.D.Luffy

BANDAI$31.694.6★103 rev

Newest

by launch date

GTS Distribution One Piece TCG: Ace & Luffy Starter Deck (ST-30) by BANDAI Japan

GTS Distribution$63.553 rev

3mo ago

Banai One Piece Start Deck EX Luffy & Ace Card Game (ST-30)

BANDAI$76.0054 rev

6mo ago

One Piece Card Game Card Game Starter Deck - ST-29 Egghead

BANDAI$43.1933 rev

7mo ago

One Piece: Learn Together Deck Set (LT-01) by Bandai

BANDAI$41.92127 rev

10mo ago

One Piece Card Game - Starter Deck 22: Ace & Newgate (ST-22)

BANDAI$20.48174 rev

12mo ago

What buyers say about one piece starter deck

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall17%

“Really good product quality is good fits my card deck good”

Collectibles16%

“Perfect for collection”

Value For Money11%

“Great value”

Advertised Vs Actual Product10%

“as advertised”

Suitability Beginner5%

“A great product for beginners”

Fun/Entertainment Experience5%

“Fun deck, very easy to learn with”

Gifting Purpose5%

“He was pleased with this gift”

Size-Overall3%

“perfectly sized”

Design-Overall3%

“Well made, cool design”

Color3%

“The colors are beautiful”

What buyers complain about

Value For Money27%

“This is way to expensive”

Size-Overall12%

“This is a small set compared to others”

Ethical Trade/Fair Trade12%

“Do not buy scam”

Advertised Vs Actual Product10%

“Terribly misleading”

Quality-Overall9%

“Trash”

Ease Of Use8%

“kind of hard to figure out”

Shape/Style4%

“was kinda crushed cards not in the best of shape”

Top return reasons

Value For Money33%

Advertised Vs Actual Product18%

Product Condition18%

Strength9%

Defective Material/Parts6%

Size-Overall3%

Ethical Trade/Fair Trade2%

Gifting Purpose2%

Functionality-Overall1%

Print Quality1%

Common questions

Is one piece starter deck profitable to sell on Amazon United States?: The niche generates $230K/yr across 43 tracked products. 6 of 8 products launched in the last 360 days are still selling. 90-day search growth is -18.6%. Flapen's verdict: Worth a look (52/100).
How competitive is the one piece starter deck niche?: 14 brands and 228 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in one piece starter deck?: Top complaints mined from reviews: Value For Money, Size-Overall, Ethical Trade/Fair Trade. The return rate is 1.2%.
When does demand for one piece starter deck peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the one piece starter deck niche?: Listings span $11.44–$84.27; the average listing price is $36.34 (sweet spot $15–$100). The average incumbent carries 151 reviews — the moat a new listing must climb.