Turbo,
While it is true that google gives more exposure to the higher ctr ads, it is up to you to get your ctr ratio higher.
1. Use fewer adwords, take your top ten adwords and start from there.
2. Once you have the ten you want to focus on, work on your creative for those ads.
For example, your currently top performer could be
Adword:
"adword optimization"
Your current ad:
" TurboFace.com
The best place on the net to get expert advice on Google adwords"
It is resulting in 2000 impressions a day, with a CTR ratio of 1%, with a roi of 25%
Now take that same ad and work with it for better results.
same adword:
"adword optimization"
Your changed ad:
" TurboFace.com
2 years experience in optimizing google adword campaigns. 1 Week FREE in consulting."
This time the adword results in the same 2000 impressions but the ctr jumps up to 3% thus resulting in a higher number of impressions in the future. Not to mention increasing your roi.
That is first thing you should do. The next should be to use Dynamic title placement as well as geotargeting.
I would explain the last two but I need to get back to work.
Good luck
