gpilling - 10:45 am on Apr 26, 2013 (gmt 0)
Congratulations on reaching hundreds of orders per month. That is quite difficult to achieve. Now I would start working on reducing your Single Point of Failure risk. What is SPOF? Its when Google changes their ranking algorithm and your traffic disappears overnight. It is not pretty.
So work on Google Ads, Bing Ads, other printed ads, affiliates . Have a look at [webmasterworld.com...] for lots of good information.