3D Tv: Will it follow the same trends with all technology?

It's been a year since 3D made it to the masses (maybe more since Beowulf came out in Nov 2007) so that's almost 3 years. But I've been so pre-occupied with seeing Avatar on a Samsung 3D home theater system that I totally can't believe I forgot about what made the VCR, Internet & other technologies. Wow! How did that slip my mind?