Lucas isn't "great" but to a lot of people Star Wars is. It's fantastic escapism, a universe unlike ours but incredibly immersive. It has mythology, heroes, villains, beautiful women (and men) and calls out to almost everyone. It's deep, rich and full of intrigue.
I seriously hope you didn't start this thread to Troll.
Absolutely, It's something that I've been obsessed with since I was 5 years old. Whenever I think of Star Wars it takes me back to being a kid with not a care in the world. I can understand why people ridicule it but then again, the people I know who ridicule Star Wars are the ones who come into work in the morning and rave about the previous nights soap opera on TV.