Nothing wrong with nostalgia. I used to rewatch a lot of the same films on VHS and DVD before I had access to good internet. Can’t do that any more though as the variety of films out there is too much to ignore.
Nowadays I try and watch new films every time. If I really enjoy a film in the cinema I’ll watch it a second time when it becomes available online, like all the MCU films. Occasionally I’ll rewatch things like Star Wars, James Bond, Die Hard, Christopher Nolan films and some of the best 90’s Hindi films. But I prefer to give priority to films I haven’t seen before.