Odd question for the thread.
Is it me, or do manga books become "out of print" or "collectors items" in a short time, seemingly at random?
Years ago I was reading Appleseed and a few volumes in, it suddenly disappeared from shelves and was asking triple digit prices online. A one off, I thought, since the book has been in print since it was brought to the west. In a local comic shop, manga will be mostly complete on the shelf, then one day 1-5 will disappear, and be asking five times the cover price online. Sometimes the book in question is a year or two old, or worse, is still being published.