Really interesting discussion... many people have hit on great points. I think Michael (Blansky) really hit it on the head when he said that all the 'people' photographers want people in the landscape to add emotion and all the 'landscape' photographers just want landscape.
But I think the real answer may be that you cannot put emotion in anything for anyone other than yourself.
For me, there are landscapes that move me almost to tears ...there is something about them that touches my soul. I very rarely see a photo with people in it that can move me like that. I'd have to say that there have been some I've seen here that have touched me in such a way.
So the right idea is that if you photograph anything that moves you emotionally, chances are fairly good that in this vast world there will be others also moved by it.
I'm with Joeyk49... if I shoot anything that resembles a 'good' photo, I am totally psyched!