Adwords ads can and do convert into paying customers. It just depends on which customers you target, and how you word your ads.
You will want to fine tune your ads so that only the people who are most likely to buy will click on them. If you are selling a $1000 product make sure your ad is worded in a way that people who only want free stuff are not clicking on it.
Example: $1000 startup can create thousands in residual income for life!
I hope that helps.
If you are going to embrace something,Embrace Success!