Always depends on the type of movie, I usually only buy them on sale and yes they’re worth it imo. Bestbuy, Amazon, Gruv usually have good prices. Most releases get a 4K disc, Bluray disc and digital copy. Keep in mind that not every 4K transfer is created equal, so buy accordingly. Streaming is convenient and all but there are certain things one should own without having to worry about license agreements expiring from streaming services.