Anyway, if you really want to get upset about people selling Mame, then forget the cabinet builders, they are selling a legitimate product. The end product is no different, if the seller installs the software, or the buyer. The end result is THE SAME. The fact is that you can't sit on any high horse about any of this, unless you are that one phantom person (who I have yet to meet), in the emulation community who has a 100 percent "legal" rom collection.
Where was I, oh yeah, forget the cabinet builders, they are just guys like you. If you want something to complain about, then why not complain about the plethora of Mame powered JAMMA boards coming out of Asia. Every 3 in one, 6 in one, 9 in one, 12 in one, the Mega-Williams, the game crystal, the 1000 in one board, and others are ALL Mame. All Mame, all mass produced by actual companies, not just individuals, and no one says jack about this stuff, and I see this stuff on location. I see this stuff for sale on ebay, I see this stuff at every auction, and I see this stuff for sale from "reputable" amusement companies.