Because We Said It Would Fail
I have to concede that part of the problem may have been all the negative attention that 3D has received, from the press, from gamers, from average consumers, and from everyone in between, it seems. The demise of 3D gaming may have become a self-fulfilling prophecy when message boards became filled with complaints and vitriol describing the technology.
It's not like 3D hadn't been around for decades already when it started showing up in our living rooms, and if we didn't like it in theatres, why would we enjoy it from our couches? Who's going to buy into a trend that seems destined to fail from day one?