He's not in a hurry to get rid of her at all. $22K is probably a number he threw out there saying to himself "If someone will pay that, I'll sell her. Otherwise, she's staying right here."
All about what the animal is worth to the seller. Pricing can tell you a lot, in fact, about what sellers think about both themselves and their stock. Quality is not cheap, and the good breeders aren't afraid to sit on their stock and feed it because they know eventually they'll get what they want from it.