My SaaS, Snip Salon Software, is profitable as of today. I wrote a blog post about it: http://www.jasonswett.net/snip-is-profitable/
Hopefully this is inspiring to those of you who have not yet reached profitability. I started Snip on January 7th, 2011, so it took me just under 3 years to get from “first Git commit” to profitability. (Maybe one reason it took me so long is because I started with a Git commit.)