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ゴムボーイ 210 替刃
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.2%return rate — above 5% kills the launch gate
Review moat
Incredible74.23avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Market size
Good¥833K¥833K/yr · 9K searches
Conversion
Good5.5%search→purchase rate — share of searches ending in a sale
Growth
Bad-10.4%90-day search growth — must beat 0% to launch
Competition
Bad77%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Avg price
Bad¥1630.34avg listing price — sweet spot $15–$100
Price range
Bad¥722.98–¥3545.02cheapest to priciest tracked listing — scored on the share inside $15–$100
Signals High Price