Ice wine: Older is better?

Q: I have a 2008 German Eiswein, and I haven't had it stored in a refrigeration unit since I got it. I was wondering if it is still good to drink. I have had the bottle stored upright in a dark cabinet that stays room temperature. Does it only need refrigeration just before serving? Any help on this would be great because I'd like to finally crack this bottle open.

Bill Daley

January 1, 2013