On another note, I don't think DHH gives a shit about Pinterest, Quora or Instagram (none of which have even come close to making a single cent of profit)
Basecamp is a scalable business considering what it is but I doubt that 37signals makes tons of $$ with Basecamp (check their Alexa traffic, it's an aged product and overrated, popularity still comes from Rails, most that I know switched years ago to other tools).
> I don't think DHH gives a shit about Pinterest, Quora or Instagram
http://37signals.com/svn/posts/3177-all-the-oxygen-trapped-i...
A few people have attempted at figuring out 37signals annual profits (which mostly come from Basecamp). Some veeeeeery conservative figures put their profits at around 10M a year. Probably a multiple of that. To you it obviously isn't "tons of $$". I get it! Next, you're going to say that no one pays for "time-tracking" anymore...