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Katherine Pierce Costume
Skip itPrices mostly outside the sweet spot ($6.29–$14.37) — this niche doesn't clear our bar today.
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Good593.35avg incumbent reviews — the moat a new listing must climb
Growth
Good+29.6%90-day search growth — must beat 0% to launch
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Avg price
Okay$10.01avg listing price — sweet spot $15–$100
Conversion
Okay2.2%search→purchase rate — share of searches ending in a sale
Returns
Bad7.5%return rate — above 5% kills the launch gate
Market size
Bad$5K$5K/yr · 24K searches
Price range
Bad$6.29–$14.37cheapest to priciest tracked listing — scored on the share inside $15–$100