I've been having this problem lately.
I like to have a very organized showroom. And it bothers me when one pet fits into more than one category so i have to choose.
For example:
a silver jaaku.
I have a category for silvers, and a category for seasonals.
It fits in both. I don't know how to categorize it.
So. Maybe this is just me and my habit of being over-organized, but i think it might be helpful if you were able to put creatu in more than one category in your showroom.
Just a thought.