Well, everything is working fine without the buttons, so I don't see much point in upgrading now. Money is tight until I finish the master's program I'm in right now. If it does die completely, I'll buy a super slim, or maybe I'll find a good deal on one this Christmas. Not really into getting used systems but maybe! I will need a hard drive, too, so that's another expense.
Despite having a ton of PSN content, I don't really use my PS3 all that much.