So my understanding is this: You BOUGHT her for $5000. But she has a bad attitude that no one told you about. So now you want to sell her for $2000. She is a GREAT one due to her pedigree, and you hate to sell her, but you have 600 cows already.
If she is for sale (which apparently she is) you need to put this in in the classified section.
To you answer your question "Spring 09 Monoply heifer what IS she worth?" I would say "If she has a bad attitude, a bit over market price to make a cow out of, and if her attitude really stinks, just pound price." Sorry.
(The capital letters are corrections, I am not yelling.... just for emphasis.)