Let me share my 3D experience when I bought my 3D TV. I thought I could save money by just playing SBS downloaded mkv movies. At first it was fine but when I had problems like ghosting/crosstalk, active shutter glasses turning off, 3D going back to 2D, headaches and dizziness, I reverted back to 2D. Another problem is that I need to watch the movie concentrating on the center of the screen as the 3D feature is just limited there. The TV edges are blurry. I did not bother with the 2D to 3D conversion as it lacks the depth that I was expecting. As I was trying to convince myself that I can live with these problems, the other members of the family aren't in the same boat with me. Watching 3D became a chore. Definitely wouldn't convince visitors and friends to convert to 3D. I am better off with 2D.
BUT after watching a Bluray in 3D, I was begging for more. I bought a 3D demo disc to try it out. I was blown away. I got the same experience when watching in a 3D theater. No crosstalk, active shutter glasses problems, etc. Even the TV screen edges are well defined and the images are literally popping out of the TV. Now I am buying 3D BDs which are 1.5-2x more expensive than regular BDs.
It becomes more expensive to enjoy the feature.
I can watch the whole movie through without any distractions nor headaches. Now the kids and the wife are watching and enjoying the movie with me. I solved the 3D glasses expense problem by buying generic active shutter glasses. It functions as well as the branded ones and costs half as much. I just had to source it abroad.
Bottomline...3D is a nice novelty to have but with what I have narrated and if you are ready to spend a little more to enjoy that feature...GO for it!