THX is not listed on Wiki's LFL filmography. And I thought the Empire of Dreams doco indicated that LFL only came about after THX.

http://en.wikipedia.org/wiki/Lucasfilm

The point, though, is that several of the things you cite are niche titles for niche audiences. THX 1138 is just about the dictionary definition of a non-mainstream release nowadays. It's interesting, I really enjoy it but it's not going to do Indy numbers on DVD (or BRD). Ditto a lot of other LFL releases. Could Willow grow in stature if it gets a respectable Special Edition release? Yeah, possibly, but what if you're wrong? What if LFL spends millions on a deluxe Willow release that doesn't sell for anything? That's a big hit for tiny LFL to take.