Mabe someone who doesn't care about money (people with over 500M maybe). But a average +3 difference is useless. Corrupt dragon items should be less worth then the originals (except the weapons). I am sure jagex had their hands in there. I wanted to buy a CD-scimmy once, and didn't got it, but I offered the highest price for 3 days. So, there aren't even enough CD-items around to rize the price to that high. I am sure the price for the CD-armour-parts will fall down once rapitly.