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boys inflatable halloween costume

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Soft demand (-39.3% this quarter) — this niche doesn't clear our bar today.

Market size 16Growth 5Conversion 28Competition 24Returns 10Price range 90Avg price 95Brand share 56Review moat 68Quality gap 43

Avg price

Incredible$26.02

avg listing price — sweet spot $15–$100

Price range

Great$13.14–$42.12

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

Review moat

Good774.78

avg incumbent reviews — the moat a new listing must climb

Brand share

Good71%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Conversion

Okay2.2%

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

Competition

Bad71%

top-5 click share — a locked-up shelf

Market size

Bad$62K

$62K/yr · 108K searches

Returns

Bad9.7%

return rate — above 6% kills the launch gate

Growth

Bad-39.3%

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

Competition

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 rising

Sellers

12

Top-5 brand share

71%

Open market

20%

  • EraSpooky27%
  • Threadsorcery12%
  • Stegosaurus12%
  • KOOY11%
  • inkArts10%
  • SVNVIOZ9%

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%$6K20%$12K30%$19K40%$25K101001K10K 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 82 weeks — -39.3% search growth over the last 90 days.
18K13KSpike '25Prime Day '25Spike '26DecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 92.5×

Reviews

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

What buyers love

Gifting Purpose10%

“Such a fun gift”

Comfort-Overall8%

“comfortable”

Quality-Overall8%

“A decent enough costume”

Fun/Entertainment Experience8%

“Fun& easy to move around in”

Soft Feel8%

“Very soft”

Size-Overall7%

“it fit him perfectly”

Durability5%

“It's pretty durable”

Inflation/Deflation5%

“Easy to inflate”

Value For Money4%

“well worth the cost”

Ease Of Use3%

“easy to use”

What buyers complain about

Size-Overall29%

“Poor fit”

Durability9%

“literally same day started to fray on some seams”

Product Condition5%

“Not a new product”

Quality-Overall5%

“not well made”

Stitch/Finish/Polish5%

“Seams are trash”

Gap/Hole4%

“Arrived with hole”

Ease Of Use3%

“a bit of a hassel to get in”

Material Quality2%

“The material was very cheap”

Advertised Vs Actual Product2%

“This was nothing like the picture”

Thickness2%

“I did notice that the clear face shield is thicker than most of my inflatable costumes”

Top return reasons

Size-Overall52%
Length16%
Gap/Hole6%
Advertised Vs Actual Product3%
Material Quality3%
Stitch/Finish/Polish2%
Sleeve Fit2%
Product Condition2%
Shoulder Fit2%
Arm Fit2%