Amen.
When I was a teen it was forbidden to eat or to smoke at the movies. My parents used to go often, and even my Grand parents would occasionally go for some light commedy or drama.
The shift to the Multiplex, with hordes of teenagers talking, chewing, sms'ing, smoking and throwing stuff ended the experience for everybody that liked to see movies at the Movies. Due to working hours, we could only attend the late sessions. At a certain point, safety started to be an issue.
A DVD costs the equivalent of 2 tickets. The whole family can watch it as many times as we like, in the peace and comfort of our home(s).
The biggest issue is the lack of quality of most movies, when considering an adult audience. Everything seems to be marketed to the 14-25 y.o. age group. Special effects and loud sound are a drawback for me, as I want to chill out instead of revvvvvving up!
The last family movie outing was Lord of the Rings III, and the next one will be Indiana Jones IV. Those you have to watch on the big screen, the rest is perfectly watchable on DVD. Personally I stopped going to the movies after Star Wars II. Lucas killed what was left of the magic.