A couple of counterpoints. What good has come of regulation? None you say? This reminds me of the mentality displayed by others in the "legalize all drugs" thread. That if something isnt 100% effective we might as well chuck it in the trash and have a free for all. Of course malpractice and bad drug still occur, but could you image what wouldnt be caught and ruled out if no oversight was performed?
I feel it is a mistake to equate vets and doctors. Prices would not stay stable simply because we are who we are and when our day comes we would pay anything to extend our lives or cure our ills. In addition, the medicine, machines and test for humans are vastly more complex, hence expensive. Of course, you may have poor insurance and thats why you wuld have to wait weeks and pay through the nose but those are localized examples and IMO, cannot be applied as a "rule of thumb".