Yes Emily, used book stores sometimes have aquarium books but I find they are usually very basic beginner books. I have to admit I did find my copy of Corals of Austrailia and the Indo Pacific-J Veron for $40 in a used book store. Ebay is also good but the after exchange/shipping/ and duty it's not always such a good deal.
As it seems there may be enough interest, and the local stores aren't carrying them, I think I'm goin to put a power buy together. I will link to it in the buy sell section when I get some prices.
Stircrazy, the list includes all of the Modern Coral Reef aquarium series,
as nobody local is carrying all of them.
Here is the list:
http://www.canreef.com/phpBB2/viewto...?p=41201#41201