Matt Mullenweg is credited as the original creator of wordpress and runs automattic. I have talked to Matt, he is a really cool guy and has some great ideas. He is pro open source and sees his wordpress as a open source community project and not product for sale.
With that said, the only thing could be bought would be a hosting company that hosts wordpress websites. Currently I believe GoDaddy.com is the largest wordpress hosting company in the world.
BTW, your website looks like an http://about.me page.... but I digress.