True, but also laughing, cheering, and applauding (on occasion). For a big midnight release a lot of the fun is waiting with other fans - I loved going to openings of movies like Return of the King (LOTR), even the last awful Star Wars prequel, etc. and waiting with hundreds of other excited people at the Fremont Theater - a grand old theater seating 1100. https://en.wikipedia.org/wiki/Fremont_Theater
If you haven't seen Rocky Horror in a theater instead of at home, you ought to give it a try. Or The Room - bring spoons.
Often, it's only slightly better than a home theatre, but I don't want a giant screen I don't use 999% of the time taking up a large part of the wall.
And very rarely, you'll have spectacular moments, where the entire audience shares in a powerful emotion, moments you'll remember for the rest of your life. That you won't get at home.
And so we all have different preferences :)