I'm sorry.
As I said in my original post, I did not wish to upset anyone. I was simply curious. I also did not mention an exact amount. I was not referring to 4/500 dollars. I actually saw and ad on petfinder, thru a rescue, for over $700. I truly believe that that is too much money to ask for a rescued dog, regardless of what has been spent on him, when most people who are willing to spend that and more would be more likely to go out and buy from a questionable breeder for a healthy dog than pay the same money for a dog who may very well have serious and continuing issues. My concern was not for "how much money should one pay for a rescue" but rather how can we, as a caring group of individuals, be placing more rescued dogs in loving & caring homes and seeing fewer in shelters and rescues?
I hope that clarifies any concern.