Yes, a few verified sales have taken place at the inflated prices. They have been shilling this book for months though so it’s difficult to say what the value of a raw copy should be right now.
Especially since it appears they began the shill right around when the Comic Book Men and Season 3 hype began, which IMO alerted quite a few comic book collectors that the series existed, and vice versa for fans of the show who were not aware of the books which also may be a fairly large contributing factor to the extremely large price jumps across the board.
I’m pretty hopeful the value will begin coming back down very soon though.