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A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Market size 2Growth 17Conversion 11Competition 0Returns 86Price range 95Avg price 84Brand share 0Review moat 98Quality gap 47

Review moat

Incredible33.33

avg incumbent reviews — the moat a new listing must climb

Price range

Incredible€16.46–€21.50

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

Returns

Great1.4%

return rate — above 6% kills the launch gate

Avg price

Great€18.40

avg listing price — sweet spot $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-16.7%

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

Conversion

Bad0.9%

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

Market size

Bad€10K

€10K/yr · 61K searches

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 rising

Sellers

7

Top-5 brand share

100%

Open market

0%

  • Modiphius45%
  • Star Trek31%
  • Spreadshirt24%

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%15%€1K30%€3K45%€4K60%€6K110100 Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 3 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 27 weeks — -16.7% search growth over the last 90 days.
1K600Spike '26Jan '26Feb '26Mar '26Mar '26Apr '26May '26Jun '26