I'm a little surprised myself, but not too much. Anime never sells for a lot on eBay, and it's a joke how little manga goes for in comparison to the new prices. Seriously, more often than not auctions for second-hand manga end for less than half of the average new prices; including postage.
People on eBay are bargain hunters and, really, only the sort of collectors who pay full price on release ever pay anything close to new prices. That isn't a good combination. But, sadly, eBay is the only decent place to sell junk on the net if you want viewers/maybe even buyers.
Hopefully at least the CB sets will go bye-bye. Since I did seriously pay £60 for 'em, I couldn't start the auction for much lower without pretty much giving them away. And, as for Planetes, I guess I've just listed that at the wrong time. It isn't as if there's an AL set on the horizon yet, and the box sets are now out of print... *shrug*
(I'll actually more than likely take loss for the Planetes set since the starting price is under what I paid for the two, btw.)
...Oh well, at least people are hot for Gundam Wing. Shame about it not being all that great!