Hey offsuit
I would be interested to see which site you did apply with. From what I know you need to have a site that has quality content with white listed merchants in the UK.
PPC is not going to be every affiliates business model. I think a person with a good analytic mind with a site with quality content will do well. As simmo said your Google Quality Score is going to be a big key in regards to your spend per month.
Speed to market will also help you build a quality score and this is what we can help affiliates do. If you are after more information please stop by the Income Access booth at CAP.