KirkPicard, I am jealous of that awesome collection!!!
I opted to try and collect most of the Futura series. They are of excellent quality. They are a bit overpriced, though.
One thing that disappoints about the Micro Machines series is that some of the ships were horribly warped, and they came that way out of the box. I have a couple of Klingon birds of prey with super warped wing tips.