I said "play a game for old time's sake" but really, I'd have no problem playing a whole campaign with 2e or even earlier versions, IF the DM demonstrated to me that he was good at running that particular edition.
Some DMs are better at one than another; I find 3e suits me. I can barely play 4e, and I'd be very hesitant to run it; something about it jars me. I would go back to running 2e if my players asked me to. I had a good set of house rules, and I enjoyed the heck out of it, idiosyncracies and all.