Today’s ambitious price will be tomorrow’s bargain. They’re getting snapped up regularly on eBay for $60 or so almost as fast as they’re listed right now. I’ve got 2 NIB 9057’s in the garage and wouldn’t let either one go even at the current fair market price.
@Steve Hoch has got a new control panel for a 1000 series that I’d gladly pay $200 along with a decent B+ panel in trade for but he called “not for sale” on it before I even got to throw the offer out there. Back in the day you could’ve bought the same panel new for less than $25. When it comes to discontinued parts & accessories, it’s a demand driven market.