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altitude sickness prevention
Worth a lookShows low returns (0.0%), but a concentrated shelf (top 5 take 70% of clicks) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$22.98avg listing price — sweet spot $15–$100
Conversion
Great7.0%search→purchase rate — share of searches ending in a sale
Price range
Good$3.66–$39.59cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$409K$409K/yr · 254K searches
Brand share
Good74%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay2,642.06avg incumbent reviews — the moat a new listing must climb
Growth
Okay+8.5%90-day search growth — must beat 0% to launch
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Signals Low Review Barrier