Stargorger: I feel your pain with regards to part changes,
which seem to have been happening an awful lot in the past 5-10 years. I think we've all felt the pain of having "special purpose" parts that sit in a bin unused, such as BURPs. Personally, as much as I'm looking forward to the upcoming 7984 Deep Sea Raider (see above), I'm almost positive that the big drill piece will end up in my "Misc." bag along with some of my more pre-fab and Bionicle-related parts. Of course, all those clear yellow windshields will more than make up for it.

But yeah, I kind of wish Lego would use fewer gimmicky parts that are difficult to re-use effectively. I understand the need to draw in action-oriented kids, though. To be fair, the Creator and City sets seem to have more traditional part selections, and Creator sets have alternate instructions, so that's a step in the right direction.