I have an ambiguous relationship with the whole 3D movie/game/tv/whatever trend. On one hand, I love new gadgets and neat technology, and I like a good spectacle. On the other hand, it seems like it's becoming an annoying fad and everyone is jumping on the visually appealing bandwagon. Despite the challenges, despite lousy conversions of 2D films to 3D (Clash of the Titans comes to mind), people are barreling ahead with 3D. Apparently, there will be a 3D release of "The Last Airbender," which fills me full of dread (taking what appears to be a visually stunning film and running 3D after the fact? Not good.)
Now, I think 3D is going to be inevitable. It's approached a fad status, people are interested in visual quality, but I'm expecting 3D to be a very bumpy road for moviemakers, game makers, and hardware people. The problem is that people don't "get" 3D, they don't ask the question anyone should ask about a new technology, gizmo, process, etc.
Does it add value? If you don't ask that question you're either ignorant or just trying to jump on the bandwagon.