39
smoke detector
Skip itPrices mostly outside the sweet spot ($37.54–$671.37) — this niche doesn't clear our bar today.
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Returns
Good2.8%return rate — above 5% kills the launch gate
Review moat
Good1,443.88avg incumbent reviews — the moat a new listing must climb
Avg price
Okay$187.72avg listing price — sweet spot $15–$100
Conversion
Okay3.5%search→purchase rate — share of searches ending in a sale
Growth
Okay+9.2%90-day search growth — must beat 0% to launch
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Market size
Okay$100K$100K/yr · 15K searches
Competition
Bad71%top-5 click share — a locked-up shelf
Price range
Bad$37.54–$671.37cheapest to priciest tracked listing — scored on the share inside $15–$100