Will someone please explain to me why people are paying more for USED parts on Ebay than they could buy the new part for mailorder? I've been watching Truvativ Stylo SS cranks on Ebay for weeks now and they are routinely going for more than you can buy them from several mailorder companies. I'm not talking about outboard bearing models either these are identical ISIS parts. Even the shipping is more on Ebay for half of the offerings. I don't get it.