Keep in mind that it is $6,600 for a graduate (post-Bachelors) degree, not a college degree.

In the U.S. a Bachelors degree lasts 8-9 semesters and equips you for work far better than the 3-year Bologna "equivalent."

The Masters degree thus can focus almost exclusively on the graduate-level courses, with the exception of some refreshers.

You have to compare the $6,600 to the cost of living in the United States.

U.S. census Bureau's poverty threshold is $11,500/year income. In this income-level very little goes to taxes. So this program is roughly 7 months of minimum wage in the US.

That is very affordable for an advanced degree.