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Hufflepuff Costume
Skip itHigh returns (11.1%) — this niche doesn't clear our bar today.
Avg price
Incredible$36.73avg listing price — sweet spot $15–$100
Competition
Great23%top-5 click share — an open shelf
Price range
Good$8.73–$135.94cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good883.86avg incumbent reviews — the moat a new listing must climb
Brand share
Good71%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Growth
Bad-7.8%90-day search growth — must beat 0% to launch
Market size
Bad$79K$79K/yr · 180K searches
Conversion
Bad1.2%search→purchase rate — share of searches ending in a sale
Returns
Bad11.1%return rate — above 5% kills the launch gate
Signals High Returns