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diesel heater glow plug
Skip itSoft demand (-87.6% this quarter) — this niche doesn't clear our bar today.
Review moat
Incredible78.7avg incumbent reviews — the moat a new listing must climb
Conversion
Great10.3%search→purchase rate — share of searches ending in a sale
Returns
Great1.7%return rate — above 5% kills the launch gate
Avg price
Great$16.18avg listing price — sweet spot $15–$100
Price range
Good$12.99–$20.00cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Competition
Bad72%top-5 click share — a locked-up shelf
Market size
Bad$36K$36K/yr · 21K searches
Growth
Bad-87.6%90-day search growth — must beat 0% to launch
Signals Low Review Barrier