The US spends 2-3 times what the rest of the OECD countries spend on a per-capita basis. https://data.oecd.org/healthres/health-spending.htm
For all that spending, we have lower life expectancy and worse stats in a variety of outcomes. http://www.commonwealthfund.org/publications/press-releases/... http://www.latimes.com/nation/la-na-healthcare-comparison-20...
Not only does healthcare not have to be expensive, it isn't (comparatively speaking) in the rest of the developed world.