And also that Star Wars came out in a time when a given local theatre would show maybe a dozen or two movies a year, whereas these days most theatres have a dozen different films running concurrently at all times. And also that Star Wars came out in a time where there really wasn't much else like it and therefore it really, really stood out compared to its contemporaries. Having fewer things to remember makes remembering those few things easier.
This is my signature. It exists to keep people from skipping the last line of my posts.