I've had the same thoughts, also I sure don't miss the theater experience of having your shoes sticky with soda. God forbid you drop something on the floor like your phone, and have to feel around for it in the dark.
The last time I went to a theater, I went to the first showing of the movie for the day. We were the only people in the theater. 30 minutes into the movie, the projection suddenly shut off and all the lights turned on. After sitting there for about 10 minutes, we went out to talk to a staff member about it, and they told us that the computer said there was no one in the theater so they should shut it off. Long story short, they did not end up turning it back on, and referred us to the customer support hotline to try and get our money back. And this might be a little ageist, but there's something infuriating about a condescending teenager acting like this is somehow our fault. Yeah, no thank you.