I consider contact printing on photo paper a waste of money, in most instances. The only exception is when I use a roll or two of 120 to take portraits and want to see which will make the best enlargement. I don't think a scan or scan+printout gives you that information as well. I'd love to have printed contact sheets for every set of negatives I have, just to be able to look through them. I, unfortunately, am not organized enough to scan my negatives as soon as I develop them - I usually scan in large batches. I should make computer-printed contact sheets as indices. But I probably won't....