45
oil drain
Skip itPrices mostly outside the sweet spot ($62.51–$493.65) — this niche doesn't clear our bar today.
Review moat
Great191.46avg incumbent reviews — the moat a new listing must climb
Returns
Great1.5%return rate — above 5% kills the launch gate
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Avg price
Good$151.81avg listing price — sweet spot $15–$100
Brand share
Good75%top-5 brand share — brands hold most of the demand
Competition
Good55%top-5 click share — leaders hold, buyers still browse
Conversion
Okay2.6%search→purchase rate — share of searches ending in a sale
Market size
Okay$110K$110K/yr · 27K searches
Growth
Bad-16.2%90-day search growth — must beat 0% to launch
Price range
Bad$62.51–$493.65cheapest to priciest tracked listing — scored on the share inside $15–$100
Signals High Price