There are definately some places I know of and have checked, that even as I am doing it I am hoping that it isn't there. Main thing I want to do it check is once to know if I can rule it out.
Off hand, of the ones I know there are probably 4 places that I really wouldn't want it to be at all, and about that many that I would kill for. The rest are all ok, but not as great.
The hardest part for me is I am to a point then talking in game isn't getting me far because people quickly get to the point where they don't know as many as I do. I keep hoping for the day I stumble on someone that know 6-7 more than me and says "You know a lot of them, but here are some you haven't mentioned" Even if it is the general area, or something.