I think there's still a place for these. I reluctantly bought books in the past only for college, but the last few years I've bought books for interest and fun from amazon (price is also a big incentive compared to the past).
Plus there is still a push in schools to get kids to read (most often paperbacks - book clubs).
With a domain like this it's tricky to run anything other than an amazon affiliate website - I developed studentbooks.com and it's done very well although amazon recently changed the info they give out in their feeds (I gotta update that site)
I think I saw this domain floating around here in the past.