i think the larger sizes can go as low as 75dpi. my 5500px can print a 60" print. and 6200px can print at 72". when i upload i make sure it looks clean at a 100%. and i make the digital art even larger than needed.
it is a problem with the bulk edit, if you had any not for sale, its now for sale again. i added that to the suggestions, i'd like to be able to turn it off for some images or sizes.
---Mike Savad