I purchased myh2o.com for our SaaS billing platform (named H2O) in 2010 for $3500. I also purchased h2o.io sometime after that for $600. In 2009, an ISP client of ours, Rio Networks, sold rio.com for $450,000.
Using it now. $5 well spent. Great job on this - very intuitive and clean. Very impressive at such a young age - you should have your pick of internship opportunities!
The fact that he is the "CEO of one of the web's biggest companies" means he earned the right to decide to write code if he wants to. Successful businesses aren't created by following every principle in the latest business books.