The 3D TV phase was so odd. It really seemed like an inevitability: there was a technological breakthrough, it was genuinely much better than what came before (the red and blue stuff), it was relatively inexpensive, and on paper it seemed like a strict improvement on the status quo (flat TV).

But... somehow, I never actually found myself wanting it that badly at home. And I guess everyone else agreed because one day it just vanished.

So few technologies follow a trajectory like that. Usually you either get a success or a failure, where successes only end once they're replaced by something new and strictly better. But this was truly a fad; it was kind of successful for a minute, and then everybody lost interest.