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resmed airsense 11 dc adapter
Skip itA concentrated shelf (top 5 take 74% of clicks) — this niche doesn't clear our bar today.
Conversion
Great12.0%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$25.53avg listing price — sweet spot $15–$100
Review moat
Great281.21avg incumbent reviews — the moat a new listing must climb
Price range
Great$10.13–$31.99cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Returns
Okay3.7%return rate — above 5% kills the launch gate
Growth
Okay+8.3%90-day search growth — must beat 0% to launch
Market size
Okay$158K$158K/yr · 52K searches
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad74%top-5 click share — a locked-up shelf
Signals Low Review Barrier