I believed those PhD toting know-nothings in their white lab coats... that is, until avatar came out and I saw 3D for the first time in my life! It was the most amazing experience I've ever known. I imagine it's what it would be like for normal people to all of a sudden see in 4D.
I've since looked at plasma 3D demos at bestbuy and was even more amazed by active 3D technology. It was as if the world inside the screen was more real than the one I was standing in. Now imagine what a world like Skyrim would be to someone like me who has almost no chance of ever seeing 3D without technological assistance... It is not a gimmick for me at all.