What I love about Star Wars is they are the ultimate kids movies/trilogy. I loved watching them as a kid, it set of my imagination off like wildfire and when I wasn't watching the movies all I thought about was SW. Whether it was playing with the action figures or running around the backyard pretending I was Luke Skywalker chasing down and shooting stormtroopers.
What I also love about SW is although they were the greatest kids movies that we grew up with, they are also kick ass movies to watch as an adult. Nostalgia plays it's part for all of us but the movies also have plenty to enjoy as adults, kind of what Pixar is good at. Parents don't mind taking their kids to see these films because everyone can enjoy them.