I realize this is an older post and may not be seen, but going to through another idea out there. Like srellim234, I kind of enjoy reviewing my collection of logo balls and even bought some Team Europe balls back in 2012 just to have. However with my increasing collection it has created much clutter as srellim234 has put it, making it very unlikely I will purchase any other logo balls that I do not have.
What I think would be cool would be if a person could not only delete unwanted balls, but the ability to move from inventory to a display/rack of some sort for yourself and friends to view. Kind of like a "Ball Display/Rack" feature or accessory. Some logo balls I only have one of so moving one to the display would remove it from my inventory. Others I have more then one so after putting one on display I may still need to delete or play with in order to clear them from my inventory. As far as I'm concerned it could be a permanent move so once put on display you would not be able to put back into inventory, but others may like the ability to take back and fourth. With the ability to go back and fourth, if you have more then one logo ball you could put them all on display, then if decide want to use could move back to inventory for use. Thus one may not have to delete the excess balls after all.
When I go to my own or friends profile there is a button to view equipment (between the appearance and score history buttons). One could put the ball rack feature in there. In my own just put between the sell and edit button. My friends have no buttons so all have to do is add one to access those balls he/she has chosen to put on display.
I realize this feature wouldn not have a lot to do with the actual game itself, but think it would be cool. I have known many golf enthusiast who have ball collections they like to show off. Be kind of nice to be able to do it myself. kc