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south park birthday decorations

Skip it

A small market ($15K/yr) — this niche doesn't clear our bar today.

Market size 4Growth 13Conversion 45Competition 19Returns 81Price range 54Avg price 56Brand share 24Review moat 68Quality gap 21

Returns

Great1.7%

return rate — above 5% kills the launch gate

Review moat

Good768.15

avg incumbent reviews — the moat a new listing must climb

Avg price

Good$12.73

avg listing price — sweet spot $15–$100

Price range

Good$7.84–$23.44

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

Conversion

Okay3.6%

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

Brand share

Bad90%

top-5 brand share — brand-locked demand

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad77%

top-5 click share — a locked-up shelf

Growth

Bad-24.7%

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

Market size

Bad$15K

$15K/yr · 34K searches

According to Flapen's Amazon United States niche tracking, south park birthday decorations is a $15K/yr Amazon United States market (34K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Jan. Verdict: Skip it — 31/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

south park birthday decorations market data

Units sold / yr
750–1K
avg 0–100/product
Revenue / yr
$10K–$13K
units × avg price
Conversion rate
3.6%
Avg BSR
#7,240
Page quality
0%
Prime
100%
Sponsored
100%
Out of stock
20.8%
Avg brand age
35 months
Avg seller age
183 days

Competition & brand share

The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

13

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

7%

  • Seyal77%
  • Odd Sox4%
  • GRAPHICS & MORE3%
  • South Park3%
  • Concept One3%
  • SAXAMPPA3%
  • Open — no brand owns it (3 brands, 7%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -24.7% search growth over the last 90 days.
1K600Black Friday '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan · busiest ÷ quietest = 2.1×

Top south park birthday decorations search terms

  • south park birthday decorations15K/yr
  • south park party decorations8K/yr
  • south park decorations4K/yr
  • south park birthday4K/yr
  • south park cake topper4K/yr
All search terms

Top south park birthday decorations 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.

0%10%$2K20%$3K30%$5K40%$6K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about south park birthday decorations

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

What buyers love

Quality-Overall40%

“Great quality”

Gifting Purpose22%

“Perfect gift for my son”

Comfort-Overall9%

“she still loves the comfort”

Battery Life7%

“The battery life is amazing i honestly dont think shes turned them off since christmas n its now Feb 1st”

Value For Money6%

“Good deal”

Warmth2%

“Keeps him warm”

Thickness2%

“the thickness. Twss”

Ease Of Use2%

“They were very easy to use”

Advertised Vs Actual Product2%

“looks just like shown in picture”

Brightness/Shine/Glow2%

“Images are clear n bright”

What buyers complain about

Size-Overall19%

“the fit isnt the best”

Ease Of Use14%

“A bit hard to put each letter though”

Product Condition14%

“Arrived used and with no ribbon”

Advertised Vs Actual Product14%

“Don't believe the picture”

Adhesion/Stickiness14%

“The glue dots kind of suck so I used regular tape”

Brightness/Shine/Glow7%

“Not the brightest”

Top return reasons

Size-Overall64%
Advertised Vs Actual Product6%
Product Condition5%
Thin5%
Feet Fit3%
Strength3%
Defective Material/Parts3%
Material Quality3%
Adhesion/Stickiness3%
Warmth3%

Common questions

Is south park birthday decorations profitable to sell on Amazon United States?
The niche generates $15K/yr across 13 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -24.7%. Flapen's verdict: Skip it (31/100).
How competitive is the south park birthday decorations niche?
9 brands and 13 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 90% of demand.
What do buyers complain about in south park birthday decorations?
Top complaints mined from reviews: Size-Overall, Ease Of Use, Product Condition. The return rate is 1.7%.
When does demand for south park birthday decorations peak?
Demand peaks in Jan; the busiest month runs 2.1× the quietest.
What does it cost to enter the south park birthday decorations niche?
Listings span $7.84–$23.44; the average listing price is $12.73 (sweet spot $15–$100). The average incumbent carries 768 reviews — the moat a new listing must climb.