You'd have to be blind in one eye and cant see out of the other not to notice the swing in this trend. However, there is a good side to it all. Not every CL lister is a flipper wanting to pay their late rent with a one piece-cranked, rusty chained Schwinn. Some of these are people that just want to dig out what they have to make a few bucks on something gathering dust in the corner of the basement the past 15yrs. It is these few that are the gems worth dealing with.
I picked up a '79 Super Mirage (in my sig) for 60clams last summer. It's a beauty and in amazingly good condition now that I've cleaned it up.