The resources can be better. I can't find it right now (and don't have the time to look for it), but there's some interesting studies that show at least in South Korea, there's something like 3-4x the number of medical imaging devices per capita than in the U.S.

Costs are fractions of U.S. costs. For an extraordinary number of medical situations, one could fly to Korea, get treated, stay in hotels or nice recovery centers (medical hotels), and fly back and still spend less money than in the U.S. with very competitive medical outcomes.