Industry? You call standing on the shoulders of LAN parties (typically non-profit) and using games other people make (typically not intended for site licenses) an industry?
If I take my home DVD collection and start showing popular movies to the public on a nice home theater system for $5 an hour, is that an industry? No. You know what would happen to me? The MPAA would come down on me, that's what, because I would be taking the work of others (aka a finished movie) and using it for an unintended purpose (aka putting money in my pocket). I don't see the difference between that and a LAN Center, unless you can think of a game with a purchaseable site license - and the last game I remember that offered that was ROTT. Of course, moot point because I don't think many CS players could run that game smoothly.
I'm not saying Valve's completely justified charging monthly fees when no one else charges, but I can at least see
why they're doing it, and I don't feel bad for LAN Centers. These guys are making money off Valve's products for their own gain with no recourse besides a one-time purchase fee (violating their EULA) and turning our hobby into a business. Guess what? If you wanna make gaming a business, then in business you have expenses - get used to it.