I buy a lot of my games loose, I am just that kind of guy (mainly cart based systems), but I must say you do have an amazing collection. Those Saturn titles have me drooling on this end, and I only own around 30 Saturn games, most import games (and around 130 NES games, 99% cart only, I buy them to play them as much as possible, just enjoy collecting and playing games).

I'd go bananas if I tried to buy anything complete, sometimes I get lucky, sometimes I don't.