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Iron Lung
Skip itA concentrated shelf (top 5 take 95% of clicks) — this niche doesn't clear our bar today.
Quality gap
Incredible3.9★avg incumbent rating — lower means beatable quality
Returns
Great1.3%return rate — above 5% kills the launch gate
Avg price
Great$78.51avg listing price — sweet spot $15–$100
Growth
Good+53.6%90-day search growth — must beat 0% to launch
Review moat
Okay2,338.71avg incumbent reviews — the moat a new listing must climb
Conversion
Okay2.1%search→purchase rate — share of searches ending in a sale
Price range
Okay$13.37–$347.51cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Bad95%top-5 brand share — brand-locked demand
Market size
Bad$38K$38K/yr · 23K searches
Competition
Bad95%top-5 click share — a locked-up shelf