40
diffuser
Skip itA small market ($3K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Avg price
Incredible$29.74avg listing price — sweet spot $15–$100
Price range
Great$8.75–$74.99cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Brand share
Okay76%top-5 brand share — brands hold most of the demand
Competition
Bad76%top-5 click share — a locked-up shelf
Review moat
Bad15,924.63avg incumbent reviews — the moat a new listing must climb
Growth
Bad-16.9%90-day search growth — must beat 0% to launch
Conversion
Bad0.7%search→purchase rate — share of searches ending in a sale
Market size
Bad$3K$3K/yr · 14K searches
Signals Low Review Barrier