I confess I still don't own Star Wars on DVD.
I do, however, own both the original version AND the new release version on VHS, though my family has the original version on perma-loan, pretty much.
I actually don't have the DVD of the first three movies, either. I have two different VHS versions: one boxed set of the original movies and one boxed set of the re-released version with the added material. Plus I think I have a version I recorded off TV the first time they showed the original on TV.
We don't have Star Wars on DVD either, mostly because by the time they were released on DVD we'd more or less lost interest.
Star Wars original trilogy isn't out on DVD yet. Target date is in the September time-frame, IIRC...I keep tabs with my local rental/sales outlet :)