'If someone is serious about building a larger site related to this topic, they should be able to pay mid XXXX for that.'
I totally agree..
Unique Visits, that's what every one involved with direct marketing, web masters, entrepreneurs, and anyone concerned with real life potential leads wants to know.
One could build a entire fleet of Software construed around this very concept. UniqueVisits.com only has 325 Exact Match 'type-in' searches each month because no one has built at least one piece of Software that truly lets an end-user know how many potential Leads have passed through their Domain each month or day or minute and wants to use UniqueVisits.com (The most generic, category killer name for this concept), as the Face of their business.
I would happily give you $1,300 for it IF I were looking to build that fleet of software.
In fact if I had the Fleet of Software produced and ready for release and had a CV Backed Budget I would happily hand over $25,000.
Think Big and stalk people dude, like HauntMe.com, awesome.
Regards.matt