40
90 inch shower curtain liner
Skip itA deep review moat (61,886 avg reviews) — this niche doesn't clear our bar today.
Returns
Great1.7%return rate — above 5% kills the launch gate
Conversion
Great8.0%search→purchase rate — share of searches ending in a sale
Avg price
Good$14.68avg listing price — sweet spot $15–$100
Price range
Good$9.49–$29.43cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+6.5%90-day search growth — must beat 0% to launch
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Competition
Bad73%top-5 click share — a locked-up shelf
Market size
Bad$45K$45K/yr · 38K searches
Review moat
Bad61,885.5avg incumbent reviews — the moat a new listing must climb