You could probably find an old 486 for muuuuuuuuuuuuuuuch cheaper (as in free). Or use a modern PC with the FreeDOS OS. I've only ever seen 1 or 2 386 bridgeboards for sale and never seen a 486 or Pentium. 286 bridgeboards seem fairly common on ebay, but the performance would probably suck for anything but the simplest games.