If you believe that their prices are uncompetitive, don't buy from them!
Harry You should get angry if someone is ripping you off. and I don't think that comparing them the the cost of the hard stuff is a usefull guide. We all know that amazon coming to the uk has already forced the cost of hard copies down and if you don't like the cost of a new book you can always get it cheaper on the second hand market Abe books
I don't know if this is relevant but Rex have opened their e book pages for the iliad and on first glance they not only to have a large selection but seem to be reasonably priced
Regards
Bob.