We have to remember that the Sony book site is new also. It is growing as far as selection, but this too just needs to take time. I am just glad I don't need the book site to rely on books to read.
In fact, with all the books I do have on the hard drive, I really don't need to purchase anything now anyway unless I really really want it. I mean how many books can you read at once? For me, it's one book at a time. How some of you may do a few books at a time is beyond me and Kudos if you can read in that manner!