Paying just to play online? Ouch.
I did the same thing though and while Xbox live was fun online it's hard to justify paying monthly fees just to play games online when you can do it on the PC and PS2 for free.
Compared to the 40+ bucks per month it costs for broadband I figured an extra 6 bucks a month is just a drop in the pond ( for me at least, I won't speak for others). I just figure that I might as well get the full use of any Live games that I have or plan to get.
Don't get me wrong, I'm not getting defensive or anything, but it occurred to me the whole online PC/PS2 gaming can be free isn't quite true with most broadband prices nowadays.