The main reason I would suggest paying for leads is in order to obtain data that you would otherwise not be able to. A lot of database companies will try and sell you on the fact that they have specific names and e-mail addresses but these are not hard to figure out as I show in another article. Also, it is unlikely you will get a list of the perfect contacts that you will be able to call and they turn out to be the right person (another reason I encourage doing the work!).
ZPA lets agents pay to have their profiles appear as the only contact on listings when buyers search for available properties on Zillow, Trulia, or StreetEasy. When a prospect wants to contact an agent for more information, they can do so directly from the listing by filling out the on-screen form; there is no need for a user to navigate to a separate landing page. ZPA guarantees exclusive inclusion for members, though this has not been confirmed.
BoomTown is missing a lower-cost option for smaller agencies and individual agents. Even though their lead generation marketing efforts and CRM combine the best use of communication and technology to produce a great product that stands out among real estate lead generation companies, BoldLeads or Real Geeks might be a better choice if budget is an issue.