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a4 book covers plastic clear

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Prices mostly outside the sweet spot ($3.34–$12.64) — this niche doesn't clear our bar today.

Market size 6Growth 33Conversion 74Competition 22Returns 82Price range 0Avg price 18Brand share 39Review moat 66Quality gap 91

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Returns

Great1.7%

return rate — above 5% kills the launch gate

Conversion

Good6.9%

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

Review moat

Good841.54

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay82%

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

Growth

Okay+6.8%

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

Competition

Bad74%

top-5 click share — a locked-up shelf

Avg price

Bad£6.31

avg listing price — sweet spot $15–$100

Market size

Bad£22K

£22K/yr · 51K searches

Price range

Bad£3.34–£12.64

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