The nice thing, though, is that you have standard hardware and no worries about OS and booting. MiSTer is plug and play for the most part. With MAME, you have to worry about computer, OS and configuration, all of which may or may not work well. MAME is great for what it is, but, for the games that are executed well, MiSTer is awesome. Load up Pac-Man/Ms. Pac Man, Double Dragon, Street Fighter or Commando (there are many more good ones -- check out Jotego's cores for some awesome work) on the MiSTer and you will see the possibilities of MiSTer on well-executed FPGA arcade games. The good ones are just about up there with Jrok and BitKit. As I always say, though, FPGA is cool, but it all depends on the detail and completeness of the implementation. There are several cores that are incomplete or incorrectly implemented.