Disclaimer: My first job was repairing arcade cabinets when I was 14 back in '86, so I could talk about this stuff all day. I'm trying not to totally derail this thread, but yes - you can build and sell a "licensed" multi-arcade game with ROMs built in, and at a reasonable price. The Arkeg guys are using GameEx as their front-end which also has karaoke and jukebox functionality. I recently switched from MameWah to HyperSpin which is also a really nice front-end that can be booted directly into for a consumer kiosk-level experience. Other multi-game licensed machines you may have seen in the wild are the Global Arcade Classics, Ultracade, or the Arcade Legends series. Capcom used to sell an ArcadePC cabinet that came with 50 roms on a disk and even used MAME as the front-end. Not sure if they're still around, but HotRod control panels came with around 20 licensed ROMs and X-Arcade cabinets came with about 200. There was also a StarROMs site that sold ROMs individually based on agreements with the various license holders. Exceptions the past few years include when Namco re-released the Ms Pacman / Pacman / Galaga cabinets for the 20th anniversary, they no longer licensed them individually but you could get around it by licensing "Namco Museum" which included those, Dig-Dug, Galaxian, and Pole Position. All of that being said, the licensing has always been kind of fishy but unchallenged. Are the roms on your own pcb's or ones obtained through X-Arcade, HotRod, etc. transferrable? What about all of the roms you bought from StarROMs when they were active? Sony has sued Connectix for making a PlayStation emulator and lost. As far as I know, MAME or any other multi-arcade type cabinets have never been challenged in court, likely because there's no money in it. Getting back on topic, the sharks seem to agree.