Oh is that why we have a special Visa specifically for that purpose?

http://www.immihelp.com/visitor-visa/visitor-visa-usa-medical-treatment.html

Or why Canadian Newspapers have Q&As about going to the US for care?

http://www.theglobeandmail.com/life/health-and-fitness/ask-a-health-expert/what-should-i-know-about-seeking-us-medical-care/article543405/

Here are some other sources to prove you wrong....

http://ramoslink.info/treatcancerusa.html

http://www.patientsbeyondborders.com/united-states (Just read those first two paragraphs, we DO have the best here.)

http://www.forbes.com/2008/05/25/health-hospitals-care-forbeslife-cx_avd_outsourcing08_0529healthoutsourcing.html
From above link:

Most of those patients in search of the best care, including 38% from Latin America, 35% from the Middle East, 16% from Europe and 7% from Canada, are heading to the United States. Additionally, it’s estimated that 32% of all medical travelers simply want better care than is available in their home countries, mostly those in the developing world, and 15% want quicker access to medically necessary procedures. That’s compared to only 9% of medical travelers seeking medically necessary procedures at lower prices and 4% seeking low-cost discretionary procedures.

http://www.send-hope.org/pdf/Bringing_Patients_to_the_United_States_for_Medical_Treatment.pdf

Gee there sure are a lot of these groups that help people come to America for medical help....I wonder how many more I'll have to post, there are just sooo many on Google.

http://www.cbsnews.com/news/reverse-medical-tourism-points-up-pluses-and-minuses-of-us-healthcare/

http://www.ibtimes.com/medical-tourism-rise-chinese-patients-seek-care-us-hospitals-american-companies-court-2174706

EVEN CHINA!

http://archive.freep.com/article/20090820/BUSINESS06/908200420/Canadians-visit-U-S-get-health-care

http://www.who.int/bulletin/volumes/89/1/10-076612/en/

Affluent patients typically explore options beyond borders due to dissatisfaction with their domestic health system, such as the unavailability of appropriate treatments, relatively low quality of care, absence of modern technology and/or shortage of health-care providers. Many well funded patients travel to countries with a long tradition of receiving foreign patients, such as Switzerland or the USA. Others might decide to seek care in countries that have recently upgraded their health sector through new and better equipped hospitals as well as well trained professionals. For instance, India is becoming an attractive medical travel destination for patients from Bangladesh, providing health services to approximately 50 000 Bangladeshi every year.1