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tennis trainer
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Avg price
Great€52.36avg listing price — sweet spot $15–$100
Returns
Great1.6%return rate — above 5% kills the launch gate
Price range
Great€24.54–€122.01cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,114.75avg incumbent reviews — the moat a new listing must climb
Growth
Okay+19.5%90-day search growth — must beat 0% to launch
Market size
Okay€213K€213K/yr · 129K searches
Conversion
Okay3.2%search→purchase rate — share of searches ending in a sale
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals High Price