He has to be playing games.
I saw that closed once before at $271, so 315 for the pile delivered if you wanted to repaint is not a bad deal. The buyer would pay quick because he'd be afraid the seller would cancel the deal.
Just a quick guesstimate, but if I took those trains to a show in LA, I'd come away with 400 easy.
I bet the bidder you see is the seller's shill bidding account.
I looked at his listings and he is weird. LAZY is a good word. His other listings are similar. Just whatever he got from one person in a large lot.
Here's an idea. . . Maybe it's his pride and joy and he's just listing it so we'll be jealous?
Maybe his wife said, "Get that out of here." So he's listing it on eBay to appease her.