I disagree, to an extent. I don't think local results produce the same kind of traffic that being at the top of the organic results, but I've personally witnessed a decrease in local leads ever since Google first implemented the map along with three local competitors. It's one thing to notice that a paid sponsor link is only getting 5-20% of people who perform a search. Its another thing when your result is now preceded by ten competitors with phone numbers immediately available. If it was bad before, this is much worse.