I wouldn't mind seeing more movies that explored what the world would be like if that mad man and his followers had conquered the world. When I watch modern movies that deal with the "order" of a fascist state, equilibrium for one, I get a strong sense of nostalgia and organization. It reminds me why being a free people is so important, and why we had to defeat those murderous bastards. I think Lucas related to that struggle, good verse evil, when he set about writing Star Wars. And we all know how that turned out.
For me the military feel of Star Wars was what made the movie. From the cool stormtroopers to the X-wing fighters the movie just ignited my imagination and filled me with wonder. So what if Lucas took elements of Nazi Germany in his movie? I think he pulled it off quite nicely and I only wish that his last three films had captured that formula.