Well, seems to me that the Valar are eating pop-corn watching Sauron in his exploits. Since the people of Middle-earth are hopelessly outdone, they sent the Istari to prolong the fun.
Hi there, mailed to Prof. Olsen recently, but maybe he was so shocked that he couldn't even give me a thumbs down. I imagine Nan Elmoth like the forest in Hayao Miyazake's "Princess Mononoke", does anybody agree?
Also, I think that Eöl went to Nan Elmoth because he couldn't get used to sun...