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30

dog vampire costume

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A small market ($0/yr) — this niche doesn't clear our bar today.

Market size 0Growth 56Conversion 0Competition 18Returns 16Price range 68Avg price 48Brand share 34Review moat 89Quality gap 35

Review moat

Great229.44

avg incumbent reviews — the moat a new listing must climb

Price range

Good$8.03–$29.68

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

Growth

Good+30.0%

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

Avg price

Okay$11.79

avg listing price — sweet spot $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay84%

top-5 brand share — brands hold most of the demand

Competition

Bad78%

top-5 click share — a locked-up shelf

Returns

Bad8.2%

return rate — above 6% kills the launch gate

Market size

Bad$0

$0/yr · 53K searches

Conversion

Bad0.0%

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

Competition

The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

15

Top-5 brand share

84%

Open market

10%

  • GOYOSWA38%
  • ROSAUI20%
  • Rubies10%
  • COCHPR10%
  • chmacura6%
  • PAYHTOW6%
  • Open — no brand owns it (2 brands, 10%)

Product shelf

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

0%10%$020%$030%$040%$01101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — +30.0% search growth over the last 90 days.
7K5KSpike '24Holiday '24Spike '25Spike '26DecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 82.4×

Reviews

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

What buyers love

Size-Overall43%

“Fits perfectly”

Quality-Overall28%

“The costume is overall well made”

Comfort-Overall11%

“comfortable”

Ease Of Use6%

“Easy to put on and off”

Material Quality4%

“Quality material”

What buyers complain about

Size-Overall38%

“This was a size small”

Durability25%

“Broke at the first use”

Advertised Vs Actual Product13%

“so the picture on the cover of this item is misleading”

Grip8%

“It was a little slippery”

Top return reasons

Size-Overall96%
Strength8%
Advertised Vs Actual Product4%