Purchasing mailing lists can be very expensive. Depending upon how many local residents you'd like to target with your mailing, you can spend well over a thousand dollars just to get access to the list. Beyond the COST of the Lists, there's the Question of Quality
Although have sources in whom I have the highest faith and trust, inevitably the majority of lists we purchase have a significant amount of DEADWOOD in them. Bad addresses, changed address, unknown addressee etc.. We always take all the returned mail and update our database, but even then, there's always many that come back with no further/forwarding information. But now (courtesy of the USPS) there's an EFFECTIVE SOLUTION...