I think one of the big issues is still the price points.
Sure the TV's themselves have come down (even quite a bit from the past few years) BUT the glasses are still HIGHLY overpriced and to fully enjoy your new toy you need to buy multiple pairs of glasses, so now you're almost right back to "full price"
as for online 3-D porn, it can and will be "big" IF and ONLY IF the people who are producing it are actually in it for the long run.
You made a great point about 3-D in the 60's and how people said "this is going to be BIG!!!" while it's not "BIG" per say you have to agree that it's LASTED 40+ years and 3-D porn has also been around since the 60's and it's lasted too.
as for the glasses, it's a necessary evil (at least for now) and people have been trained to wear the glasses, and the major motion pictures have helped to cement it even further, the real problem with the glasses is there is soooo many diff kinds, and most things take 1 type only
STILL a lot of work to be done, and bugs to get rid of before 3-D becomes like Cable TV was in the 80's, but I do strongly believe it will happen.... at some point
-Loki-
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