I fail to understand the point of posts like these. Nobody here is an industry expert nor do any of us track the prices of lenses on eBay. Just because a lens is going for more that you are willing to pay doesn't mean there is some shortage of lenses nor conspiracy to suck them all up for use with mirrorless cameras. You either pay the price or you do without. Seems pretty simple.
This has to be the 80th post I've read along the lines of "Wah! Whu can't I buy a 70-200mm f2.8 lens for under a hundred bucks? Wah!"