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Mavis Costume
Skip itHigh returns (13.1%) — this niche doesn't clear our bar today.
Avg price
Great$20.78avg listing price — sweet spot $15–$100
Brand share
Great52%top-5 brand share — no brand owns this niche
Price range
Great$5.15–$53.98cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Competition
Good42%top-5 click share — leaders hold, buyers still browse
Growth
Good+28.6%90-day search growth — must beat 0% to launch
Review moat
Okay1,940.49avg incumbent reviews — the moat a new listing must climb
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
Market size
Bad$21K$21K/yr · 188K searches
Returns
Bad13.1%return rate — above 5% kills the launch gate