Why are Witch Belts still sooooooooo expensive?

I don't see why people think Witch Belts will deflate. Well clean ones have deflated, but scrolled ones aren't going to go down anytime soon. Keep in mind that you need to use Chaos Scrolls in order to increase the ATK on pharaoh belts, which are 130m and only 60% success.

Uh-uh! 60% that the Chaos Scroll does something. If that 60% passes, there's a 50% chance the scroll adds stats, 50% chance the scroll removes stats. So it becomes 30% chance for it to work positively, 30% chance for it to work negatively, and a 40% chance for it to do nothing at all.