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postcards
Worth a lookShows low returns (0.5%), but prices mostly outside the sweet spot ($2.65–$10.92) keeps it on the watch list.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Review moat
Great283.87avg incumbent reviews — the moat a new listing must climb
Competition
Great32%top-5 click share — an open shelf
Brand share
Great57%top-5 brand share — no brand owns this niche
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good4.1%search→purchase rate — share of searches ending in a sale
Growth
Okay+1.9%90-day search growth — must beat 0% to launch
Avg price
Bad£6.30avg listing price — sweet spot $15–$100
Market size
Bad£41K£41K/yr · 158K searches
Price range
Bad£2.65–£10.92cheapest to priciest tracked listing — scored on the share inside $15–$100