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magnetic block heater
Skip itSoft demand (-93.9% this quarter) — this niche doesn't clear our bar today.
Review moat
Great135.29avg incumbent reviews — the moat a new listing must climb
Avg price
Great$64.14avg listing price — sweet spot $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Brand share
Good64%top-5 brand share — brands hold most of the demand
Price range
Good$18.89–$153.79cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Okay3.4%return rate — above 5% kills the launch gate
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Market size
Bad$41K$41K/yr · 91K searches
Conversion
Bad0.7%search→purchase rate — share of searches ending in a sale
Growth
Bad-93.9%90-day search growth — must beat 0% to launch