The obscure movie for me was... Star Wars Episode IV: A New Hope. I still know every line of dialog from beginning to end any time I happen to see it on.
No, when Star Wars first came out in 1977 and the first home video releases (including the laserdisc transfer that was included with the 2006 DVD release as a bonus feature) it was just Star Wars.
Maybe not. I don't think the prequels are good movies, but there's no denying they're some dumb fun that certainly appeals to a lot of people. The sequels don't even have that going for them. I can't imagine anyone being nostalgic about the return of Palpatine.
What I'm getting at is that the way you're talking about the sequels is exactly the way people spoke about the prequels when they came out.
I hated the prequels when they came out, I still think they're basically unwatchable. But they weren't aimed at me, and a whole new generation of SW fans grew up with a deep fondness for them.
I expect we'll see the same thing with the sequels.
Me too buddy, me too... but they will, and I have hope that someone will find a way to do the same thing to the sequels that people have done to the prequels.