Huh. I would say that without real statistics it is hard to say. I don't track any one group closely enough to say myself.
I have noticed certain things have gone for really high prices.

I've paid less the $25 (including shipping) for these in the last year. This is $69.45
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEDWX:IT
Or $60 for a similar pair
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEDWX:IT
(oops, showing Shimano...)

Suntour Ultra 6 speed freewheel. $21.5 with shipping. Pretty big contrast to the BIN for similar items.
So maybe the money isn't there.

http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEDWX:IT