I guess I considered them as rare due to the rarity of seeing them available for sale now days.
And the carts were backed up for two reasons. I had a few carts to fail so decided to back up some of my favorites number one. And number two it is super easy to switch to different game by having on one data pack and hitting reset on AdAm and selecting game off a multi game menu as opposed to swapping carts etc and putting wear and tear on packaging etc
As I said didn't wanna just throw the pack away if had some value to it.