Why is the price of GG so low?

GG Price is too low recently. Show more than 6w times per day. Dot 500 times above, only 3 knives per day? Don't know why it's so low? Everyone's how.
Then I repeatedly adjusted the advertising position to increase/decrease the amount of display. Still no effect. Later found, probably my station does not match the Good keyword advertising bar.
No way, only the GG all removed, put on Yahoo and Sogou.
I want to say is when there is no GG can still try to do other. This is better for me than it is for me, and it saves me the worry of being k every day.
Now as long as the webmaster basically do GG can be said to be smashed the head or do GG.
I suggest that we compare. Find the best profit advertising.