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50th birthday shirts for men
Skip itA small market ($20K/yr) — this niche doesn't clear our bar today.
Review moat
Great188.3avg incumbent reviews — the moat a new listing must climb
Returns
Great1.6%return rate — above 5% kills the launch gate
Avg price
Great$17.55avg listing price — sweet spot $15–$100
Brand share
Good68%top-5 brand share — brands hold most of the demand
Competition
Okay57%top-5 click share — leaders hold, buyers still browse
Growth
Okay+14.2%90-day search growth — must beat 0% to launch
Price range
Okay$7.54–$20.70cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay2.1%search→purchase rate — share of searches ending in a sale
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$20K$20K/yr · 55K searches
Signals Low Review Barrier