OK... I voted Yes. I will be purchasing them; all of them. And I guess I am having trouble understanding some people's reaction to this.
Almost three years before these books are released, the first printing of the PHB was released. In that three years since it was released, the d20 system in general and the Dungeons and Dragons "d20 Fantasy Rules" specifically have had more people mulling over them than any other RPG in history. People have debating if this class got the shaft, or that one is munchkin. People have discussed the balance of this feat against that one and if this skill is handled as well as it can be. Then you add on those things that were out-and-out mistakes. A lot of data that, no matter how long the playtest was could not have caught all of them.
Now, WotC has been slow with the release of errata sometimes -- and people have complained "I want this stuff fixed." Now WotC is fixing it all in one fell swoop, and people complain "But I don't want to have to pay for this stuff!"
I just don't understand it. I don't think I ever will.