I have myself a nice big shiny 46" 3DTV in my living room hooked up to a gaming PC.
3D blu rays are a PITA to get these days thanks to all those manufacturer exclusives (nice way to shoot your new technology in the foot industry guys) and I'm still not willing to pay the extortionate prices to get them from ebay. Depending on the quality of the film you'll get headaches or not.
So, my main content is 3D gaming from the PC. With a 3D monitor I could run at 1080 at 60hz, on my 3DTV I'm limited to 1080 at 24hz or 720 60Hz.
This works pretty well for me in some cases. World of Warcraft running smoothly with 24 FPS and max settings and 8X AA. Get a little eye strain from having to refocus my eyes repeatedly from to the HUD to the field in a complicated situation (like a raid or dungeon) but overall it's easy on the brain and I don't suffer headaches even after a couple of hours of straight play. SC2 is a little more processor intensive and slows down too much for me in 3D mode.
For a FPS, I'm addicted to high frame-rates. This means I'm set to having the 720p resolution which looks fairly ugly. Not only that but in choppy times where it dips below that, things get mixed up things as the frame rate stutters, things get very out of focus and I can start to feel a migraine coming on. Some better hardware on my end would probably improve things but even then the resolution limits keep things ugly until they improve the technology. As such I stick to 2D for those games.
So depends on content you watch and how you watch it for me.