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steam deck sd card
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$50.21avg listing price — sweet spot $15–$100
Price range
Great$16.68–$122.82cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.1%return rate — above 5% kills the launch gate
Market size
Good$379K$379K/yr · 496K searches
Competition
Okay57%top-5 click share — leaders hold, buyers still browse
Growth
Bad-11.6%90-day search growth — must beat 0% to launch
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Review moat
Bad33,240.74avg incumbent reviews — the moat a new listing must climb
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals High Price