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rx 550
Skip itHigh returns (8.6%) — this niche doesn't clear our bar today.
Review moat
Great229.21avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Avg price
Great$99.62avg listing price — sweet spot $15–$100
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Price range
Okay$60.29–$187.38cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Bad75%top-5 click share — a locked-up shelf
Market size
Bad$70K$70K/yr · 70K searches
Growth
Bad-16.9%90-day search growth — must beat 0% to launch
Conversion
Bad1.0%search→purchase rate — share of searches ending in a sale
Returns
Bad8.6%return rate — above 5% kills the launch gate