Every single single-payer system has ended up costing far more than even the most pessimistic estimates predicted. It will be interesting to see if Vermont can do better. Costs have been rising so fast in the US that I can imagine this might be the outlier.
How does this affect physicians?
As a business owner, I support this b/c it makes my life simpler. I produce products with plant, equipment and human labor. My core competency is not and should never be understanding the intricacies of health insurance.