After reading the thread and stopping around here:
Do people really vehemently despise their time playing any RPG (with a few notable exceptions)?
I reply: Some
really, really do.
I went through a similar problem with the conversion to 3Ed and again with 3.5.
I was really jazzed about the changes I saw in the teasers for 3Ed, and when the time came, I was really gung ho about the switchover- and I wasn't dissapointed. I was similarly impressed with 3.5.
However, one of my 2 main gaming buddies (since 1985!) was definitely not on board, and didn't buy his first 3Ed book until a few months before the announcement of 3.5, and I
think he bought a 3.5 PHB in 2007.
My current group (which includes the stick in the mud- aka SIM) is similarly reticent to try 3.5, though there is currently some movement in that direction (albeit piecemeal).
But SIM is even more difficult to deal with than that...he refuses to play
any RPG that isn't D&D.
I mean that.
No other FRPGS. No 3Ed derived 3rd party games. No other D20 game from WotC. And nothing before the advent of 3Ed in his gaming career, either.
When we (rarely) venture out into non-D&D territory for RPG fun, he isn't playing. (He's not the only one, but he's the major one.) And this was a serious problem for me because I was experiencing a bit of writers block vis a vis FRPG plots to DM.
At one point, that was a major consideration for me, and I scrapped plans to run Urban Arcana and Mutants & Masterminds games (among others) simply because he wasn't on board.
Now, I don't care. If I can find players for my Urban Arcana game, I'll run it and hang out with him on other occasions. I refuse to be held hostage by his tastes in gaming.
However, I'm not going to force him to change his opinions. If I wind up running a game in which he refuses to participate- so be it. I'll respect his decision and let him do something else with his time.