IIRC all PS3's support PS1 compatibility, it's just a pain to find one with PS2 compatibility.
However, finding PS1 Legends/Misadventures discs can get pretty expensive, so you may prefer to look for PC game downloads that are more reasonably priced.
Thursday to Saturday? Hmm... maybe I can make it, but I doubt it however I should give it a try.
It would be my first time going to a Comic Con, but I won't be cosplaying anybody.
Oct. 8-10 is Friday to Sunday. Quick search of events revealed an MvC3 specific panel on Friday, and World of Capcom 2010 And Beyond on Sunday (I assume that's where one wants to go for L3 info).
I've tentatively drafted my brother into making the trip on Sunday (I HATE big-city driving, and he likes New York). First time for both of us. No plans to cosplay, but for me a gaming t-shirt is a must.
Also on DeviantArt, Rumble, DLive.tv, and the Fediverse (@freespeechextremist.com and @bae.st)