Where to buy US traffic?

Where can I buy good quality US traffic? I don't care if people actually see my page or it will be only 1x1px iframe, I just need to hide my leads into huge amount of traffic to lower CTR down. Any ideas where should I buy it? Traffic can't be any suspicious, have to look like real visitors.

I'm not sure if it is good section for this question, if not - I'm sorry.

There are numerous people selling visits in the marketplace forum. You best look there.

You can buy US traffic at traffic-holder.biz

Check out traffic-masters. They have a lot of positive feedback on other forums.