Aren't films coming out which begin with limited releases and then released widely? The Post is one example. It had a limited release in USA in December 22. Then it was released widely at January 12. They do such with films like that. Get them in limited theaters. Generate good worth of mouth and get strong buzz. Then release widely. Molly's Game, Darkest Hour are few more examples from the top of my head. If anyone says films aren't being made because studios are interested in safe bets how can anyone explain the large number of films?
And films don't run for two or three months like years ago. Its foolish to compare something like Gone With The Wind to films released today. They did not face this kind of competition from the likes of games, television, etc. Less and less people are going to the theaters. You can't keep a film for so long. Even those big budget ones. Its a business. You have to earn. If a film earns it stays longer. If i recall correctly Avatar stayed for 9 months in theaters because it did that kind of business for a long period of time. But it was something unlike anything else. An exception. Times have changed. Theaters aren't the only main player for people's entertainment in these days.
I agree with high priced tickets. One reason is budgets of films are getting bigger. Something like 200 million in a film was a rarity years ago. Now its the norm for the films 'meant for the crowd'. To recoup that they ask for bigger percentages from theaters. Who increase their prices to handle that. Its not a short term thing. This has happened over a long period of time.
They shall start reducing those budgets. And more has to be done to bring more people to the theaters. These are real problems. But films aren't being made because superhero films are made is not true. Facts are there for everyone to see. More number of films are being made now then ever before. Look at the numbers from 1980.
http://www.boxofficemojo.com/yearly/