I doubt the price of original Blizzard's and Apollo's and the like will fall because at the end of the day it's rare hardware that will never be made again. Let's face it, this hardware just swaps hands all the time anyway so the price doesn't really matter so much.
The Vampire I'm sure will attract new users, or old ex-users who until now could not afford a high spec Amiga. Exciting times lie ahead I do believe.