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cistern blocks

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Prices mostly outside the sweet spot ($1.03–$14.85) — this niche doesn't clear our bar today.

Market size 14Growth 16Conversion 82Competition 62Returns 100Price range 0Avg price 17Brand share 44Review moat 42Quality gap 92

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Quality gap

Great4.0★

avg incumbent rating — lower means beatable quality

Conversion

Great8.8%

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

Competition

Good48%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay79%

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

Review moat

Okay2,343.27

avg incumbent reviews — the moat a new listing must climb

Avg price

Bad£6.16

avg listing price — sweet spot $15–$100

Growth

Bad-17.3%

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

Market size

Bad£57K

£57K/yr · 106K searches

Price range

Bad£1.03–£14.85

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