Regrets about one of 1001 wines

Paging through the book on New Year's Day, I discovered another one of the 1001 wines that I have had.  In my first year in graduate school at the University of Michigan a colleague came back from California with a bottle of Au Bon Climat Pinor Noir.  This was when I was first getting into wine, and, unfortunately, I did not yet appreciate what he had given me.  While I enjoyed it, and remember the bottle, I can't say that I can speak beyond that to the wine itself.  So another one I've had, but also one I need to have again.