I don't get this: Yahoo uses Bing so why would Yahoo be able to pay more or offer better service than Microsoft? Seems just like a middleman to me. Maybe it's

I don't get this: Yahoo uses Bing so why would Yahoo be able to pay more or offer better service than Microsoft? Seems just like a middleman to me. Maybe it's more palatable to IOS users since the "evil empire" is not involved directly?