It's still new technology but these problems will get sorted out of course --
The future is definitely on the method WITHOUT needing those 3-D glasses.
In a HOME environment consider these :
Some people have trouble with finding Remotes at times -- just imagine having several pairs of 3-D glasses around - Dog will try and Eat them, they'll get sat or trodden on on, end up in the Dish washer / vacuum cleaner etc etc.
3-D glasses in a typical HOME environment is not an option --especially if you have kids or dogs or a combination of both -- difficult to tell which is which at times.
3-D glasses in a movie theatre or IMAX is not really a problem as the cost of the glasses is included in the price of the ticket - so you don't have to worry about "losing them".