39
surströmming
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible£30.05avg listing price — sweet spot $15–$100
Price range
Incredible£25.21–£33.08cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great167.5avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Conversion
Bad1.6%search→purchase rate — share of searches ending in a sale
Growth
Bad-18.8%90-day search growth — must beat 0% to launch
Market size
Bad£56K£56K/yr · 113K searches
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals Low Review Barrier