Asking sellers to come to your office as a screening tactic

[Gary Dezoysa]

John Shaub mentions that he likes to get sellers to come to his office first as a screening tactic. 

They always object saying that he needs to see the house before they can have a discussion. I forget what Schaub's counter is. I'm more interested in hearing if you guys think he's passing up good quality leads, and if so, if it may still be worth it to do so considering the extra time spent on lesser quality leads.