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engine support bar
Skip itPrices mostly outside the sweet spot ($55.71–$321.70) — this niche doesn't clear our bar today.
Review moat
Great103.13avg incumbent reviews — the moat a new listing must climb
Avg price
Good$103.44avg listing price — sweet spot $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Good2.9%return rate — above 5% kills the launch gate
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Market size
Okay$211K$211K/yr · 85K searches
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Growth
Bad-6.3%90-day search growth — must beat 0% to launch
Competition
Bad73%top-5 click share — a locked-up shelf
Price range
Bad$55.71–$321.70cheapest to priciest tracked listing — scored on the share inside $15–$100