Just checked -- I was wrong about flowers, it's not over a $1m as I remembered -- it's *only* $167,000/day to get the top spot.
For news, it costs around $17,000/day to get the top spot ... it's a 10x difference. Hence why Flowers is such an amazingly valuable keyword.
According to google, 20,000 people per day click on the top result for "flowers" and advertisers pay $8/click.
For news, 12,000 people per day click, and adveritsers pay $1.40.
It costs $9,200 to get the top spot for "girls" and $6,600 for "stocks", $10,000/day for "weather".