40
tennis balls
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.6%return rate — above 5% kills the launch gate
Avg price
Great$21.57avg listing price — sweet spot $15–$100
Price range
Great$12.59–$35.08cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good4.7%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay2,124.64avg incumbent reviews — the moat a new listing must climb
Growth
Okay+0.6%90-day search growth — must beat 0% to launch
Market size
Bad$70K$70K/yr · 70K searches
Competition
Bad82%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand