With the film Avatar making mountains of cash, and many studios linking this to 3d, there has been a huge push for 3d viewing of media content. To this I say, they are stupid.

Now for a better argument... For all those that have seen Avatar are amazed by the visual splendor that greats viewers eyes as they are emerged into this film. This is great for a while, until in my case, the glasses started to press on my head a little to much, and every time i tilted my head to rest it on my girlfriend's head or shoulder,  who was snuggled up beside me, the pictures got all fuzzy. Unless you are right in the center of the screen, with you head up and the glasses on right, and with you head level with the screen, you get distortion in the picture that you see. This is annoying, I currently have a very nice home theater system that is in my basement, and in my opinion, a properly set up high definition television with a properly setup hd source will get a picture that has depth of field. To say the least, it looks damn near 3d, and I can snuggle with my girlfriend, and I don't look like a moron wearing oversized sunglasses.

This is something that unfortunately becoming more popular with manufacturers and movie studios and I wish they would stop. Not everything is better in 3d.

Don't rest your head on your girlfriends shoulder?
 
I would rather not watch a movie while looking at it sideways in the first place.

Yup. 3D is impractical and stupid. Will it get better? Hopefully. Apparently that 3DS is using screens that use 3D without glasses. If more movies & TVs use that, then I can see myself enjoying 3D. But right now, all 3D does is make the picture shoot out a bit more at the expensive of the clarity and color of the picture. 
 
EDIT: You have a girlfriend! AWWWWWWW

The 3D fad is lame.

Once they perfect the no-glasses approach, there won't be much of a reason for blockbusters NOT to be 3D.

Everyone fears change. 
 
It's alright.

3D still has technical problems. Like the fact that about 20% of viewers get headaches and eyestrain from the glasses. The 30% in color saturation. Etc. 3D is a gimmick for selling new theater equipment and cameras (which Cameron is making tons of money on). I'm not sold on the technology.
 
But to be really blunt about it, the current 3D tech is backward looking. It's not revolutionary technology. It's been around in its current form since the 1950s. I remember the temporary revival in the 1980s, with Jaws 3D. It's a fad that comes and goes. I suspect that the technology will get there eventually, but so long as glasses are involved, I think it's a technology that's not quite ripe yet, no matter how much James Cameron pushes it.

I'm just going to get 3D contact lenses when they come out.

I like 3D, sure it aint perfect, but it doesnt detract anything.

I hear the cool kids in high-school... they like, totally hate 3D and shit.

I totally agree with you. 3D-TV is where I draw the line. 

I have decided not to attend the screening of any 3D film. I do not want my money to support this crap.

Ryan said it best: I like 2D. Nothing wrong with 2 dimensions.

I don't think that 3d should or should not exist, but to say that it should be a must for all movies is kinda silly. It's similar to how CG is the current standard for most monster/disguise special effects. In some cases hand made special effects and makeup could serve the purpose just as well if not better, but CG is used not to further the quality of the film, but because it is advantageous and easy to advertise with. I've enjoyed CG 3d movies, like Up, where the 3d was used to accentuate the large scale landscapes, but I don't need 3d in Burn After Reading or No Country for Old Men. Even when the technology for 3d is perfected it should still only be used where needed. When 3d is used as a tool in a director's arsenal and not just a gimmick to fill seats, I think it can be effective.

No shit 3D is dumb, tell me something I don't know. :P

3DTV has a long way to go before it makes any sense for the general consumer to look into. It's extremely expensive, it's technically underwhelming, and it's really not as sweet as  most people make it out to be - beyond that, 300 bucks for a pair of glasses that enable a technology that can potentially damage children's eyes beyond repair - dude, I'm not in for that.  
 
Nintendo, Sharp; come on boys, prove me wrong!

The theaters have finally figured out how to stop teenagers from making out during movies! Hoorah!

You know when 3D movies started happening? Not even two years ago! (well maybe not, but you get my drift. It's new) Don't you think that that technology will change a fuck-ton in the next 10 years, and that it will be the standard in 20? I mean shit, dude, LCDs used to suck once upon a time too but would you honestly go back to a CRT?