Oh, I think it would be a great idea to have it available for a buyers vet. Rather then have the wheels basically come off an expensive purchase when whatever it was routinely filled with at the shows wears off. If it was purchased in an at home situation some time after the last show? Buyer would have no idea it only showed juiced on "legal" nsaids and various untestable substances.
That has happened to at least a half dozen folks I know even with a reputable agent/trainer on their side and a good PPE with a blood draw.