It's true that even when you adjust for inflation, a movie ticket is more expensive than the good ol' days.
...but it's also true that the experience is so much better. The stadium seats. The sound. The legroom. (Sure, there are jackasses talking and texting but I tend to be able to choose movies & theaters were there are far fewer of them.)
What's also different is I don't have to go to the movie theater to see a movie as much as I did in the good ol' days. Back then my only options were to pay for a ticket or wait for 12-18 months to rent a VHS tape and watch it on 23" TV or watch it edited & with commercials on the ABC Sunday Night Movie.
(Yeah, I know, HBO was in there somewhere, but I didn't have HBO...)
Movies like Sinners, War of the Worlds, Downton Abbey, Nuremberg etc. etc. etc. I can just watch at home with great picture & sound for free or a fraction of the cost of what I would have paid at the theater. So that more than makes up for the cost when I pay to see The Odyssey in 70mm IMAX.