The reason I asked about the dome was because it is a part of the overall mask, not because I'm a moron who doesn't comprehend that there are details to expose in the "reveal" mode. I already have a very cool Don Post Deluxe Vader so that "complete" look is already covered in my collection, which is why I really would like a "reveal" mask to compliment it. And just as I might want to leave it in "dismantled" mode for display, it would also be cool to have the option to close 'er up too.
And for the record, that dumb strap thing was part of the original design for Prowse which is why it shows up on most versions of the mask. These things generally are meant to be wearable and frequently are despite the cost. I mean, your car likely cost 10 times as much and you drive it around. I don't see the difference.