I am totally uninterested in computer games, always have been and always will. I totally completely believe that there are children out there who have no interest in them; personally I'd rather have a smear test than play a computer game.
I am, however, married to a keen gaming fan (games of both the computer and board nature!) and the mother of three boys. My eldest (10) is a big minecraft fan: he is allowed to play it at weekends, once homework is done, for a set period of time. This is also the case with any Nintendo type games, or the iPad. Same rules apply to 5yo DS2 who is allowed the occasional go at angry birds on the iPad at weekends. We do have a playstation but it's barely used other than for the playing of the odd DVD.
It's like anything. Do it in moderation and as part of an otherwise active healthy lifestyle, and it's fine. Allow unfettered access for hours on end and you've potentially - depending on the individual DC - got a problem. sparklingbrook has it about right, I think-it's all about balance.
I don't think it's a snobbery thing. But I do hate the attitudes of some people who (like some on this thread) get all holier than thou about it. I suspect that is what the OP is getting at really. That by not having computer games they, and their DC, are somehow 'superior'.
DH and DS1 might love a gaming session. But these don't seem to prevent DH holding down a senior management job, or stop him being a supportive husband and a lovely involved dad. In the same way ds1 seems to manage a raft of healthy participative after school activities and sports, as well as enjoying minecraft...gaming and real life don't have to be mutually exclusive.