I'm with Jerry on this one. It comes down to what both of you need/want. Sale price on both animals is pretty close. Even if you value your pastel calico a few hundred dollars over the pin (which I've seen breeders ~$800-900), you could make more money than that off the pin in the first year. "Trade value" is not automatically wholesale value, which I think is the number some others have thrown out, especially if the goal is not to just flip the traded animal. Now, if your plan would be to resell the pin immediately, I can see how a straight-up trade would not be favorable against the pastel calico.