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vagus nerve stimulator
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size
Incredible$8.3M$8.3M/yr · 1.6M searches
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Avg price
Okay$211.59avg listing price — sweet spot $15–$100
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Returns
Bad5.2%return rate — above 5% kills the launch gate
Growth
Bad-12.3%90-day search growth — must beat 0% to launch
Review moat
Bad16,916.8avg incumbent reviews — the moat a new listing must climb
Price range
Bad$73.84–$281.88cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand