they showed off some new 3d tech that i read about on avs a few months ago, for home tvs that is glasses-less 3d, and it looked pretty promising. it also didn't cause the screen to get any dimmer, which is a huge plus. that is pretty much all i know about it, but the feedback was promising.
i personally like 3d. it adds another dimension to the movie that is just neat. sure it's gimmicky and isn't necessary, but it does add something to it that i like. it's kind of like how surround sound isn't necessary to watch movies, but when you do have it, it makes the movie much better and more enjoyable.
that is kind of how i feel about 3d as well. it's not necessary, but to me it makes the experience more fun than the 2d version, for the most part. there are some movies i've seen though where it detracts from the movie, with the only one i can think of that i really disliked was the newest spiderman movie.
i have a 3d tv and a 3d projector at home. i just wish you could rent more 3d stuff but i will purchase 3d blurays if it's a movie i am interested in and i can find it for around $20. most recent ones were the new star trek and wwz because there was a deal for both 3d blurays for $32 shipped.