Aside from the actual item not having the top portion of the chamber, this piece really appears to be top notch, and very detailed. I'm definitely digging it now. Nice touch at least adding the chamber's top portion as part of the packaging though. I suspect that a few openers out there may be picking up an extra, along with the usual packaged collectors, due to how nice it looks in the package.
Though, it does look a little strange at the same time, almost as if Vader's in a bubble, or something. But that's only a little weird, and I can probably easily overlook that.
I don't see anywhere on the package highlighting the fact that this is supposedly a "500th figure" though. Maybe it's on the bottom...? Or it might just be added as a little stickered blurb later on.