I went to a Game X Change store in McKinney, TX today. I didn't find any games I wanted but I was amazed to see that one of their glass cases was filled, FILLED with APF MP-1000 cartridges, mostly boxed. There were only three titles; Catena, Blockout, and Blackjack. But they had dozens of copies. Apparently, one of the guys who works there is a collector and had a bunch of old returned stock. There's loads of markdown stickers on the boxes, probably from store chains that don't exist any more. They had no consoles, otherwise I would have grabbed one up. I've never even seen one in person before, and I've only spotted loose cartridges a few times in my life. They're selling them on eBay mostly, at $50 each. If they would have been cheaper I'd have bought one or two just for collecting sake, but I can't blow that much on games that I can't play and I know aren't fun. I left empty-handed.
I did buy something at a Movie Trading Company store, filling in a few holes in the PS3 collection - I've got around 400 titles now. I also picked up a Blu-Ray of Pacific Rim 3D, just for the hell of it.