To be cost-effective a marketing tactic must deliver good Return on Investment. Intelligent marketers should always be on the lookout for tools that are lower cost and generate the best response rates. Email can cost as little as a few cents per message. Because it’s so easy to segment lists and adjust messages email also allows marketers to test the water and change the message to ensure the very best response rates.
And it’s not just marketers who like email. The recipients like it too.
In a 2007 poll by MarketingSherpa.com 86% of US adult internet users said they opened their opt-in emails with and even more impressive 55% saying they did this "always", "very often" or "frequently". Clearly customers are comfortable with email as a marketing channel, which is backed by the results of a survey in February 2008 by ExactTarget in which email was ranked behind only direct marketing as an acceptable consumer marketing channel.