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canon 575 black ink cartridge
Skip itBrand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible22.1%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Avg price
Great£19.89avg listing price — sweet spot $15–$100
Price range
Great£11.43–£29.57cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good756.5avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+11.5%90-day search growth — must beat 0% to launch
Market size
Bad£43K£43K/yr · 10K searches
Competition
Bad87%top-5 click share — a locked-up shelf
Brand share
Bad97%top-5 brand share — brand-locked demand