Speaking as a Linux user, there has always been problems with third party programs in Linux, nonstandard installers, manual updating and so on. I, and I'm probably not the only one very seldom install third party software in my operating system (something not in the distro). I know if I use the distro supplied packages the system will work, like forever. I've seen (and used) Windows installes which have crawled to an halt in a year, mac likewise (although some would say this can't be). I've never seen a Linux install just getting sluggier as time moves on. I do believe this is because we use mostly distro supplied programs. Breaking this barrier is hard and probably one of the reasons Linux users don't like to buy programs, a normal distro have most of what we need anyways.
Now, late to the game, there has finaly come a technology which will not only offer games to Linux, but also don't screw with our operating systems. That tech is Google NaCL (I'm sort of a fanboy for NaCL if you check my history). I believe this to be the premier way to deliver games, not only to Linux (which most devs don't really care about anyway) but also to Windows and mac. Sandboxed (No possible way to screw around) is the way of the future for this type of programs. I do not want to install my games (And yes, I game in Windows), I want them playable from the net, and just trash them (could even be automatic, similiar to a web cache) when I'm through playing them. Not leaving anything behind. I have payed for a few Linux games over the years (Not enough to justify a Linux version I admit), but now I no longer want a Linux version at all, I want NaCL, it's just superior tech, for any OS.