I don't get it.

You complain that a 5000 piece lego set is movie themed, when the only thing movie themed are the minifigs and the box it came in.

As kids every single lego set we had was built into the "model" precisely once, and then dumped in with the rest of the lego. We kept the instructions, but would never rebuild the original set. That's hardly the point of Lego.

As an adult I have a huge collection of Star Wars lego sets, including the Imperial Star Destroyer and Death Star. When my son is old enough (he's not yet 3), they'll get dismantled and put in a bucket all together. From that day on they WILL be generic lego pieces. The fact that they came in a Star Wars box is then irrelevant.