I'm not really sure what I'm going to do about Pathfinder and I'll be at a crossroads with it soon. I presently buy all the Pathfinder APs, modules, chronicles and companion stuff - so pretty much the whole shebang. But I'm a 3.5 gamer and have a lot (and I mean a lot!) of material, which I'd like to get good use out of. So the main thing for me will be about compatability - if using Pathfinder with my existing material is akin to using 3.5 with 3.0 then there's every chance I'll adopt it, assuming we (ie myself and the players) are happy with the changes.
If not, then it's a question of whether I start a new group to try it out, or not bother at all. Obviously, if I elect to not bother, then I probably won't be picking up much more stuff from Paizo - maybe just some of the chronicles. And that would make me a little sad, as I'm a real fan of theirs and want to continue to support what I thought was a really brave decision to take up the 3.5 baton.
So, I'm really undecided at the moment and looking forward to the release. Either way I'll be picking up the core book to check it out.