I am going to disagree here. I love that format for several reasons:
1) I dont scroll through pages of books i have no interest in.
2) I can get the preview to have time to flip through GPA, makes the decision easier.
3) One stop to find sold books. I know some sellers don't update, but it is very quick and concise with a list when the seller updates.
4) I personally like lots of scans. If it is someone I have not dealt with before I can guage whether they can grade or not.
5) On the flip side, if it is someone I know grades very tightly, I can buy books off the list.