They're still sitting on the shelf with my other 3E stuff, until I can be certain that I won't need them. At that point, they'll be going into the closet along with my 2E Player's Handbook and related books.
I shuffled mine to the left side of the bookshelf were i keep the stuff i don't use and haven't packed away yet. It has a nice spot next to the first star wars d20 book and all my sags marvel and dragonlance stuff.
I've still got mine and they're still in use, as some members in our group haven't made the transfer, so we alternate depending on what the DM prefers. It's amazing how much I've spent on DnD. Man, I need to get a better job.