Got a question about google page ranks
 

I've got a guy that phoned me today to ask for £80 a month in advertising.
He tells me that he owns over 700 sites and is ranked #2 on google. Then he wants me to come to his hotel for an "interview."

Ok....
Is this even worth my effort?
I've heard there are "tricks" to getting higher page rankings. (IE: Not tied to hits)

Is this true and how can I tell?

Thanks