Interesting. I'd not considered that, but it certainly makes sense.
Ironically, there's this quote from "The Creative Impulse", which is the large hardbound book that comes with the Definitive Collection LDs:
There was, most especially, Lucas' emphasis on the idea of a used future that was meant to be experienced as reality rather than fantasy. The Star Wars future was not showroom shiny but dented and rusty, as if it had had hard use on the back roads of innumerable galaxies. Lucas told an interviewer during production in England that the Apollo capsules may have looked brand-new when they soared away, but it was clear when they returned that the interior was littered with candy wrappers, empty Tang cans, and other trash, just like the family station wagon.