There's so many angles to this discussion so I'll just throw something out there. I really think tamer should be required to have Vet skill. This could be implemented by having pet Stat/Skill decay over time (as the pet is neglected health care by it's owner) Also, I think as time passes pets should eventually become weak and die. Maybe after 1 RL week the pet starts to go. Also I think to stable the more powerful pets such as the overpowered Greater Dragon it should cost at least 1 Mil maybe 5 Mil per week to stable it.