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o2 sensor bung
Skip itStrong incumbent ratings (4.7★) — this niche doesn't clear our bar today.
Review moat
Great172.83avg incumbent reviews — the moat a new listing must climb
Conversion
Great9.3%search→purchase rate — share of searches ending in a sale
Returns
Great1.7%return rate — above 5% kills the launch gate
Avg price
Good$13.46avg listing price — sweet spot $15–$100
Brand share
Good73%top-5 brand share — brands hold most of the demand
Price range
Good$6.52–$24.10cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Market size
Okay$112K$112K/yr · 89K searches
Growth
Bad-1.0%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Signals Low Review Barrier