While saturation mailings are considered a "shot gun" approach, a purchased mailing list gets you the more targeted approach. The benefit of a saturation mailing are lower costs per piece; the benefit of a targeted mailing is that you only contact those with the highest likelihood to purchase. With a targeted mailing list your response rates are usually higher and your cost-per-sale lower.
As of May 2015 postage rates for a consumer or targeted mailings will run $.177 each to as much as $.287 each. Once the saturation area has been selected and purchased then a firm postage price is always provided. We never markup postage.