Isn't that irksome! Argh!
I have a favorite author that I have read all of her books except the first five. Those five sold for $1.99 each when new since they were McFadden's (series romance). Last I looked, someone had them for sell, as a set, $2,000! As much as I would love to read those books, I draw the line at something so outrageous.
But, as long as someone out there is willing to pay the price, this type of thing will continue.