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tap cartridges
Skip itPrices mostly outside the sweet spot ($4.32–$11.53) — this niche doesn't clear our bar today.
Review moat
Good770.6avg incumbent reviews — the moat a new listing must climb
Brand share
Good67%top-5 brand share — brands hold most of the demand
Conversion
Good5.2%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Returns
Bad5.2%return rate — above 5% kills the launch gate
Avg price
Bad£7.32avg listing price — sweet spot $15–$100
Market size
Bad£70K£70K/yr · 183K searches
Growth
Bad-23.5%90-day search growth — must beat 0% to launch
Price range
Bad£4.32–£11.53cheapest to priciest tracked listing — scored on the share inside $15–$100
Signals High Returns