I'm a scrap booker. One of the practices is to go through old pix and pick a few for the book. Then toss out the rest. It helps with space management. I have a hard time with that practice. I want to save ALL of them. I had a pile of pix from my youth scanned and now I have them available. I'll print a few photos for a memory book and can happily look at the others from time to time.
This batch was older photos that has yellowed and some were just BAD photos. Digmypix took time to enhance the old photos. I chose the 600 option and it's great for my needs.