Interesting. A MRI machine is a BIG capital investment but not a big operating cost. So the cost is highly related to how much of the capital cost you're paying with each scan.
Well say they do 20 tests a day at $2000 a test and a machine costs $1 million. It is paid for pretty quick. But just to make sure a box of tissues is $50 and a couple of Tylenol are $10 apiece.
There are some fairly substantial operating costs too. MR techs make a nice salary and there are significant bills for power and service.