Mark Richards, Apple 1.
Buy a print for $20, $50, or $200 over on 20×200 now. Or, if you’re feeling poor, at least go read the Wikipedia entry for the Apple 1. A choice snippet: “It went on sale in July 1976 at a price of $666.66, because [Steve] Wozniak liked repeating digits and because they originally sold it to a local shop for $500 and added a one-third markup.” Creepytown.