Why Can't We Watch New Movies at Home?
You can.
Just as soon as it comes out on DVD!
"Patience is a virtue."
Well, it's what I do now anyways 95% of the time.
There are few movies I want to rush out to see. The last ones were the Lord of the Rings trilogy and Serenity. I've been to a few since then because friends wanted to go, but I can't even remember the names. Most everything else, I'm fine waiting 3-6 months. I'm just looking at, with most everything else going to "watch it when and where you want", why it doesn't happen with new releases.
As for theater distractions, again, I'm not the best data point, but I've had issues possibly 25% of the time I've gone. I find picking a weekday matinee while school is still in session, around a week or two after the initial release date, will minimize distractions. Within a few days of release and prime times, my "bad experience" numbers probably go up to 80% or so.