It's the same reason people put a thermometer in their swimming pool. It's not to get people to dive into the water. It there so they will stick their big toe in. Their toe may tell them it's too cold to go in, but at least the thermometer got them to do that much. Without the thermometer, forget it.
Every web site has to be envious.
Look for more of them to come to the net this year, now that their big brother has broken the ice, and look for droves of them to come next year when the net shows up in their budgets. This is the big break everyone has been waiting for. Clickthrough pricing is not a disaster, it's something we have to deal with. But it is not the norm, and may not become the norm, even in the short term while we wait for the equivalent of Nielsen numbers. This is a fake email address.