What are you talking about... "nothing special"? That is an awesome collection you have there.
No, it may not be as diverse as some of the big breeder's collections, but who cares?
There are still many people out there that don't have an albino, pied, spider or yellow belly.
You've got huge possibilities with that small collection. Don't beat yourself up over it. I think it's better if people have a smaller collection that they can manage easier and pay more attention to the individual animals than if they take on more than they are able to easily care for.
A Yellow Belly Pied could have some interesting traits if you ask me.