Here's a blog post I wrote about it in August.
[Link: paulryandesign.com]It's not that your product/Service isn't good. It's that your'e selling technology, and technology changes. They didn't use a flip phone to call you.
If you're not selling MC's to new customers, and you're not going back and assessing/selling them to existing customers, you're leaving a lot of money on the table. Not only for the RMR of the MC, but for the simple fact that you're building a relationship of trust with your customers. You use that trust, to walk them up your value ladder over a period of time. Giving them great service and allowing you to make more money is the name of the game. There's nothing wrong with making money.