I got The Orange Box not too long after it came out, not at all disappointed. I also got it on PS3, because I'm stupid.
But I eventually lost interest; many of the newer weapons have broken the class system to the point of unrecognizability (with the right things equipped, the fastest class is now DEMOMAN instead of Scout... lame), and unless you play regularly it's impossible to predict how your opponents will screw you over with the latest poorly-conceived weapons. It's just pure chaos now.
I'll stick with my favorite VALVE game, and in fact my favorite game in general, Left 4 Dead 2.