$400 Castle Zagyg!?

That seems to be what they're going for on eBay, anyway. Is this really a thing?

I've never owned any rare/collectable RPG products before, so this is all new to me. I'm definitely going to be holding on to my copy!

Hard to believe that the price could inflate so much in so short a period. You can get a boxed copy of the OD&D LBBs for less than that!