Lol at the restock. If I ran the Factory Store by now I would have noticed that there is a huge run on the short colors (I think in the Pegasus case it was Red.) The facebook collectors want to think they are getting something rare so they can sell a "only 50 made in this color" disc. What I would do on a listing like this is take the color I had the MOST of and short list it to begin with. Say I've got 250 red discs. I can list 50 of them, let them sell out, then "restock" another 100 later and still sit on 100 you haven't listed. You can create demand for anything that way just by pretending there were only a few of them.
If it was me, there would be shelves and shelves of Factory Store discs not listed on the site to make it seem like a disc that you have tons of stock of is really close to selling out. Then you can "restock" and who is to know that they have been sitting there from the same run the whole time? Me and the warehouse guys? I don't know if that is what they do, but it wouldn't surprise me at all.