Yeah, prices are from a general sight globaly lowing but at a very slow speed and with some exceptions.
And it remains very different from one week to another.
Vampire counts went for nothing few days ago, but they can go back to 50$ per blister at any time. That is my opinion of those last sells.
Dark elves and lizardmen are more or less back to 20$ approx. Sometime less. Skaven are those very last days back at high price.