I used to work for Wacom, and there's another reason they're so expensive: volume. Think how much a retina display would cost if, say, Samsung made it in 10k-per-year quantities, and you'll have an idea. Wacom just isn't a big enough fish.
They also have an insanely high threshold for parts quality, but without the volume to keep manufacturers making the same parts, they keep running out. The new Cintiq[1] has one of the nicest displays you'll ever see, but it will likely always be in short supply.
They also have an insanely high threshold for parts quality, but without the volume to keep manufacturers making the same parts, they keep running out. The new Cintiq[1] has one of the nicest displays you'll ever see, but it will likely always be in short supply.
[1] http://www.wacom.com/en/Products/Cintiq/Cintiq24HD.aspx