Arbitrage

Price gaps between the VeVe gem market and StackR, on collectibles with real trading history — at least 3 recorded sales, one within 90 days, and both floors within reach of what people actually pay there.

Headline gaps are gross; Best mode nets out the seller fee (VeVe 8.5%, StackR 10% incl. burn — Marvel-case; licensor-free items pay 2.5%/4% and do better). VeVe pays you in Gems, StackR pays you in OMI, so a persistent gap is partly structural — different currencies, different buyers — not free money.