Felon said:I also can't say that I see why play options and build options can't co-exist.
You're right, there's no reason they can't. In time, they probably will.
The design goals for 4e appear to be maximizing fun, with a sub-goal of game balance (most of us will agree that a well-balanced game is generally more fun).
"Less build options" makes it easier to maintain that balance. I mean, c'mon, this stuff is just as new and different and groundbreaking (in its ways) for the designers as it is for us. As far as pure, individualized build options (# of classes, races, feats...) go, we've got a workable amount. Just not as many as we might like. But what we have is a very solid set of them. It's going to take them time to figure out the various ways they can work to get more varied, more interesting concepts without breaking the system.
As I said in the OP, 3e focused on build options as a central goal. 4e focuses on game balance as a central goal. These two things are not mutually exclusive, but it's damn hard to have them both right from the beginning.
EDIT: Adjusted the quote to just the part I was responding to.