Both. Sometimes I come across something I liked, but not enough to invest more time in to. Other times I find something I loved and I'll go back and experience it again, from different angles, try new things, come up with theories, etc. FFIX, VIII, Majora's Mask, Needful Things, The Fox and The Hound... those are some examples of things I've gone over many many times that I enjoy forming theories and stuff about. But sometimes I just want to try something to see what it has to offer, but I don't get invested enough to go back to it.