I doubt he'd re-list it anyway. I mean, he could, but they wouldn't sell as fast.
Your Aston Martin is really interesting to me. But what *you* need to remember is that, in all likelihood, this massive stock of SoE CDs fell into this guy's lap for pennies. We're talking abandoned-storage-garage kind of stuff. That's the only way he could have this kind of stock.
I would urge you to look up a standard supply/demand "X" graph and specifically the notion of consumer surplus vs producer surplus, as regions shaded within the graph. Then, acknowledge the difference between the Aston Martin scenario and this one ... namely, no one in the history of forever opened a garage and went "ooh! I found 100 of these 20 y/o classic cars!"
When something as obscure as the SoE soundtrack is suddenly found in large quantities, that will affect the price, because you're going to supply more than is presently demanded. I went well out of my way to get the word out, and the guy has probably sold over 50 copies now, at least half of them thanks to people like Spirit Chaser and me doing word-of-mouth. Were he selling them at double the price, he'd not have sold them as fast, and that matters. Especially because, since none of us know how many more the guy is sitting on, it might be the case that $25 is the price he NEEDS to set to reach market equilibrium (that is, he can't get rid of all the stock within his company's fiscal year unless the price is set to (x)).
What I'm trying to say is ... yeah, he probably doesn't realize how rare the album is. But on the flipside, if he adjusted the price up, he might quickly find out that it ain't sellin' at a rate where he can clear, and then he'd just drop it back down. The fact that these CDs were found AT ALL (as opposed to ending up destroyed in a landfill) is a boon to the supplier (as he is a re-seller of old/obscure goods) AND to the consumer.
I call it a win-win.