Should I purchase student travel insurance as primary or secondary?

[tjongejonge]

I am moving to the Netherlands to begin grad school for 2 years.
I am currently paying for an individual health insurance policy provided by BCBS. I have had this policy for 3 years.
I have no health issues, take no medication, am young and a picture of health. I.e. I'm very cheap to insure.
However my rates are steadily increasing and my coverage is crap and I loathe BCBS just on principle. There are some very good insurance policies available to foreign students in the Netherlands that offer great coverage.
I'm tempted to purchase a policy as primary and then cancel my BCBS.
This is a risk if I no longer have a student status and I need to renew the student policy. In this case, if return to the US, I'll need to get another US individual policy.
I'm afraid that I won't be able to get similar coverage for the rates I pay now (under$200/month)
I don't want to pay for two policies, the more expensive one being even more useless than it is now while I'm overseas.