I try not to, but I keep seeing it happen, usually just with stuff I only have 1 of and don't want to part with, but it seems like everything is going OOP lately. Then you have a 'value window' until a better release happens, like a blu-ray when there was none or a SE. SE's that have been re-issued as barebones tend to hold some value too. But I'm still kicking myself for not buying some titles (Watchmen UE), and not buying extras of others I just knew wouldn't last long like Savage Streets or The Entity, which I got for $6 each when in print and now wish I had got at least 2 of each. (edit, SS was $11). But overall, you are right. There are far more worthless discs out there than valuable, and it's so hard to tell what will end up being which. I still got a copy of Night of the Living Dead 30th 2 disc that I thought would buy me a house by now, and I literally would have trouble giving it away ($2.50 at amazon, for a numbered LE). I wish BD was that cheap here though, used stores still cost more or equal to than retail sales, most staying study at $10 a pop for blus.