Yes, my dh has been a gamer for years and years.

Currently, all he plays is WoW although we do have a Wii and a few Wii games that we play once in awhile (mostly it's there for the kids, though).
I *absolutely* play games with him!

I play WoW with him. We both raid, and it's a lot of fun. I don't think it's out of hand.

It's less time than a lot of people spending watching TV every night. It's just a different version of screen time, and it's one where we do have to engage our minds a bit and interact with not only each other but other people too.
If it got out of hand, it would be symptomatic of something much bigger wrong in his life, and I think we would start by addressing that.