How do you decide what to keep?

I'm already planning for next season most if not all my pairings are to build my collection, I already have a list of potential holdbacks. If something is super cool and wasn't part of the plan I will definitely deviate.LOL

What I keep is based on future plans and whether or not the animal is what I am looking for in a morph.

I do not keep morphs/combos just to say I have them, they must be what I consider a great example of the morph (according to my picky taste) for me to keep them.