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mercury 150 4 stroke oil change kit
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Avg price
Great$74.87avg listing price — sweet spot $15–$100
Review moat
Good1,008.42avg incumbent reviews — the moat a new listing must climb
Price range
Good$35.26–$144.95cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay3.3%search→purchase rate — share of searches ending in a sale
Market size
Okay$105K$105K/yr · 43K searches
Growth
Bad-5.9%90-day search growth — must beat 0% to launch
Competition
Bad76%top-5 click share — a locked-up shelf
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals High Price