Although it may seem that you will save money by maintaining the site yourself, one miscue can cost you thousands of dollars and many lost hours of work. EW offers a lasting partnership with his clients. With sites he designs, it makes it easier to continue that partnership and maintain their sites and do updates they would like added. Most of the updates are called in and fixed in a timely manner. 
 
The $50 is a monthly fee to retain EW's services, making it easy for services to be at the client's disposal.