QUOTE
State health insurance is based on your income, so if you're earning a lot, it's often worthwhile insuring yourself privately. However, private health insurance is based on your risk and not your income, so the older you become, the greater the risk, the higher your premiums.
Great info, this sort of put the whole thing into perspective for me.
Oh yeah, I should have written: single,
no kids and healthy

- had not thought about the importance of that piece of info even though it is obvious to me now.
I'd already heard something about the not changing back to state insurance. It's a bit difficult for me to rate the importance of this, since I don't know how long I'll be staying in Germany. Since I left my naitive Denmark I've been 3 years in France and 1 in Switzerland, so I'll probably not be in Germany for life, but you never know.
Today I've opted for an yearly excess of EUR 1000 on my Swiss healt insurance. If something similar is possible in Germany I'll do it again, since the payback time here is quite short.
Can you recommend any private companies or any websites, where I can find comparisons between the companies - sort of like scout24.de (German sites are ok, but English is preferred).
Thanks,
Henrik