60
6v acアダプター
Worth a lookShows beatable incumbent ratings (3.9★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Quality gap
Incredible3.9★avg incumbent rating — lower means beatable quality
Review moat
Great125.08avg incumbent reviews — the moat a new listing must climb
Returns
Great1.4%return rate — above 5% kills the launch gate
Brand share
Great58%top-5 brand share — no brand owns this niche
Market size
Good¥810K¥810K/yr · 20K searches
Competition
Good44%top-5 click share — leaders hold, buyers still browse
Conversion
Okay4.0%search→purchase rate — share of searches ending in a sale
Growth
Bad-11.8%90-day search growth — must beat 0% to launch
Avg price
Bad¥1035.84avg listing price — sweet spot $15–$100
Price range
Bad¥634.99–¥1638.24cheapest to priciest tracked listing — scored on the share inside $15–$100