Psycho is a truly fascinating film. Without this movie, it is a debatable topic on whether or not some horror films, camera angels, storylines, directors and much more would even exist. When watching Psycho, you can get a true sense of how far horror in general has come, and to how common it is to use the same types of shots, storylines and much more that was once first created by Alfred Hitchcock.
If this film was released today, then of course it would not live up to the expectations that we hold to horror, however, if this film was not released over 50 years ago, then we would not have anywhere near the quality that we have today. In my opinion, Psycho, is a pivotal film for any horror lover to watch.