40
stm32
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Review moat
Incredible50.43avg incumbent reviews — the moat a new listing must climb
Returns
Great1.5%return rate — above 5% kills the launch gate
Avg price
Great$18.54avg listing price — sweet spot $15–$100
Price range
Good$7.18–$28.97cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Okay3.0%search→purchase rate — share of searches ending in a sale
Growth
Bad-3.6%90-day search growth — must beat 0% to launch
Competition
Bad74%top-5 click share — a locked-up shelf
Market size
Bad$53K$53K/yr · 95K searches
Brand share
Bad98%top-5 brand share — brand-locked demand
Signals Low Review Barrier