I like the look and feel of the cart from an aesthetic viewpoint. So, from a collecting standard...carts are cool.
From a gameplay standpoint, I don't like the loading with the GD rom, so that's another plus for the cart.
GD roms are easier to store, and with case inserts, they can look pretty sweet on the shelf when not being used.
Other than that, I guess there's not much of a difference.
Thanks to everyone for your input.
I'm sure we all have some of each type of media.
