Hi,
Some movies are worth the big screen.
Blade Runner
Ran (Kurosawa)
Lawrence of Arabia
Brazil
The Fencing Master
Cinema Paradiso
Jean de Florette/Manon of the Spring
Most Kubrick films, specially 2001
The Wild Bunch
Star Wars (the 1st movie ... the others are too repetitive)
All The Mornings of the World
La Belle Noiseusse
... and the list goes on, because these are special and in many of these cases they were done with the large screen in mind, and the ability of showing you so much more ... that you actually feel bombarded by the film.
Nowadays, the blend is so CGI, it's insane, and one can simply watch Game of Thrones to get the idea, but seeing that on a very large screen, for example, would not be as pretty as it is from a distance, sort of like the sail on a boat looks white and pretty way out there, and when you see it up close it has cuts, bruises, rips and is dirty.
The scary one playing with the film screen, almost always, is Terry Gilliam of the old Monty Python ... catch "Baron Munckhausen" on a large screen and then go see it on your computer ... it's not the same experience, and it ends up feeling small and not as pretty, or as much fun, or as crazy. On the other hand, you can watch Ingmar Bergman films on the small screen and they are never "bigger" or "better", than they are on the large screen, with one serious exception ... you do not get to see, and appreciate Sven Nykvist's absolutely stunning cinematography in many of the films, which is so beautifully done, and so well worked opposite the lights (low budgets!!!!) and what not.
The small screen has pretty much obliterated the cinematography side of it for many of us ... it's hard to see it all now, as if the center of the film is strictly a small circle in front of your eyes, and you do not see the edges of the screen and anything else. Of special detail and attention here are the likes of Woody Allen, Roman Polanski and many directors who intentionally play with the edges, to tease you senseless and make fun of film along the way.
3D for me, is not necessary ... I don't need the feel a novel come alive in my mind, or a painting, to appreciate it, and doing this with movies, is not really my thing, or ... necessary. But if is fun, and maybe I will get stoned again and see what I missed!