You're not alone there.
I don't think many people are running out to get 3D TV's for the 3D. I do however believe, that 3D will become a "standard feature" on all TV's within the next 2 years, with the exception maybe of the models cheaper then $500 or so. Just like most decent TV's now come with a USB port to play video from a harddrive, have built-in ethernet ports, built-in dolby surround, etc.... you buy a new TV because you happen to need a new TV, and it just happens to come with 3D as well. It's simply one of those features that doesn't cost a LOT extra (in the long run, mass production).
Regarding AT&T, even if you happen to have a TV that has 3D... I don't see people spending $10 a month just to have the 1 3D channel U-verse used to carry. It's one of those things that if you have a 3D TV, you don't want to spend $10 on HD, PLUS another $10 for 3D. It should be rolled into the HD access, like DirecTV. (where you can forego on the $10 a month with auto-bill-pay, so it essentially becomes "free".)
With regards to 3D, I did look on the DirecTV site, and just happen to notice this:
"Is DIRECTV working with programmers to develop new 3D content?
Yes, DIRECTV is currently working with a number of studios and programmers to develop additional 3D programming that will debut in 2011."
So we can expect more 3D before the end of the year.