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18mm flange spectra
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible17.7%search→purchase rate — share of searches ending in a sale
Price range
Good$6.90–$32.51cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good$13.96avg listing price — sweet spot $15–$100
Market size
Okay$241K$241K/yr · 98K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,411.31avg incumbent reviews — the moat a new listing must climb
Competition
Bad73%top-5 click share — a locked-up shelf
Growth
Bad-6.5%90-day search growth — must beat 0% to launch
Returns
Bad5.9%return rate — above 5% kills the launch gate
Brand share
Bad98%top-5 brand share — brand-locked demand
Signals High Returns