I like variety, and I'll choose a new color if it's not already present in my collection. Then, if I already do, I'll balance them out so that most of them aren't all pink or purple. I have a little bit more purple than pink due to some Tantus toys. They should offer more colors than pale or darker purple. I don't like black too much. I crave so many of their toys that I can't help having some toys in the same color.
I like when toys are in rarer colors like blue, green, orange and yellow. I'm surprised at how many green toys I have now, so I need a little bit more orange and yellow now.