Of course, I saw Dunkirk in IMAX 70mm projection at the Metreon in San Francisco, which is a state of the art screening room, but that will probably only ever happen every few years. Sadly the Metreon recently remodeled with completely terrible seats (only in the IMAX room), so I'm rarely tempted to go there.
More importantly, though, not very many movies were/are shot in that format. Not enough to really build a business on.
Additionally, I will pay for the more expensive Alamo ticket every time because of their fanaticism about NOT TALKING during the move
A theater showing great classic films with great seats would be a nice change and as a 30-something, quite an affordable entertainment option.
They do a lot of classic movie showings on various days, there are Signature Series events https://drafthouse.com/austin/series that fit more to a theme, Terror Tuesdays, Afternoon Tea, etc. Master Pancake is also incredibly popular which is a live comedy showing of a movie.
If you like the Alamo Drafthouse, next time you're in SLC check out Brewvies.