Best advice i was given was - "stack what you love"

I have a very eclectic silver collection, with some high premium coins and a lot of pandas/kooks/kangaroos..... Etc I still buy a few of these coins, only now because I'm stuck in that endless loop of having to buy every year! I've gone BIG on generic rounds and cheap bullion coins these past few year, so that's definitely helped bring down my DCA for those more expensive coins.