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spare tire subwoofer
Skip itPrices mostly outside the sweet spot ($93.27–$494.57) — this niche doesn't clear our bar today.
Review moat
Great102.59avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Brand share
Good68%top-5 brand share — brands hold most of the demand
Avg price
Okay$202.28avg listing price — sweet spot $15–$100
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Growth
Okay+3.5%90-day search growth — must beat 0% to launch
Returns
Okay4.9%return rate — above 5% kills the launch gate
Market size
Bad$51K$51K/yr · 66K searches
Conversion
Bad0.4%search→purchase rate — share of searches ending in a sale
Price range
Bad$93.27–$494.57cheapest to priciest tracked listing — scored on the share inside $15–$100
Signals High Price