How do you guys deal with buying to many armies?

So a tldr. Ive got a bit of cities of sigmar i haven't fully build up and then I got some of the new ogors, I kinda dipped my toe into a few faction but then kind of ended up selling one to buy another. I think having 2 is a really good point when they have drastically different playstyles. However going beyond that makes me feel really guilty for some reason? But God comming from Total war warhammer 3 which got me into the hobby the new Dwarfs are really hitting something with me....