Right. My point was more that being open source in its own isn't always enough. Having a company behind it makes a difference to many people - more than the distinction between open vs closed.

I was able to sell our company on Cassandra because there is a Datastax there to support it when the shit hits the fan.

Of course the entire point of this particular article is that they are pretty difficult to make profitable

You cannot draw that conclusion from the data at hand. There's plenty of closed source product companies that shut down because they didn't manage to make a profitable business as well.

Red Hat's market cap is almost $15B and they're worth $2B. Definitely not incompatible.

This is like saying "the widget sells for $15 and the price is $2".

I assume you mean they have $2bn in annual revenue?

Yeah.. whoops. Thanks for pointing that out.