Secondly let's say you make portables. On the portable you make, the only way you can get games on it is to sideload ROMs. You teach your customer how to do this, and he goes and dumps every ROM file he can download on it, and somehow gets himself busted and says, hey. The guy I bought it from said its cool. Now you got a finger pointing at you, and its really not polite to point.
Plus the suits that point with him usually have well manicured nails, which makes you look down at your own solder burnt hands and feel a little embarrassed. Why!!!!!