Yeah, that's actually the biggest thing holding PSN back nowadays.
How is the inability to play dead games online the biggest thing holding the PSN back? The smaller user base and lack of headsets are both bigger issues.
Then explain to me why one of the best selling PC games of last year, World in Conflict, is basically dead online now.
PC games that have huge fanbases like counter strike, battlefield, CoD will have long term support because of players/clans who run their own servers. But as far as variety of older moderately popular games, LIVE is leaps & bounds ahead of all online platforms.
A dead game is a dead game. I have a bunch of "old" 360 games that I could leave online all day and never find a game. Dead is dead.