You're not alone
The last -- and only -- 3D movie I ever saw at the theater was nearly thirty years ago, during the big revival of '50s 3D horror flicks: "House Of Wax". Some nice effex bits -- a guy whapping a paddle ball in your face in one scene, and a climactic fight scene where one guy throws a chair at another guy, he ducks, and the chair appears to fly out towards the front row. Aside from the 3D, as a Grade "B" '50s horror flick, it was OK; I mean, you can't go wrong with Vincent Price.
About a year ago, while waiting to catch a plane home from Johannesburg, I checked out some of the 3D flatscreens set up around the departure lounges as a promo for Sony (I think it was). What crap it was, especially for the prices they were asking. It had a ridiculously small "sweet spot" where you had to be in order to get any 3D effect, and it was still all blurry and diffracted around the edges. It was like looking at one of those little trick souvenir rings where you tilt it one way and you see Bruce Wayne, and tilt it the other way and he turns into Batman (yes, I'm really that old).
You're right on about holographic TV, though; that shit'll really be where it's at, especially if it's finally perfected in my lifetime. I might actually start watching (American) football again.