Google is trying to beat us at the moment and what ever we thought about it has gone through the window, I think it's down to age, I was watching a webinar the other day and it said links to other sites aren't as powerful as they once were.
My SEO man said that everyone has now gone for websites and is finding it harder and harder to get page 1 let alone No 1, I'd guess it's the same for the maps.
Shaun