This isn't some fact that is going to appear in the encyclopedia Brittanica. If you actually search for it, you'll find a bunch of content like "if you assume they sell 5 million copies per year at $10 per copy, then they must make $50M/year!!".

I won't say it's likely, but a number of times on this very forum I got the inside scoop by asking a question and having someone in the know respond directly to me. Off the top of my head, Patrick Collision and Walter Bright have filled me in on details that people otherwise just speculated about online.

Both of them probably lost some hard-to-quantify money when divulging such info, pricing obscurity is a tool many negotiators use, transparency kills such tools, of course when competition forces internal prices to be revealed the dynamics change but in general there is little to gain business wise.

Except in this case it is? As user "from_endor" has pointed out in the mean time, you can just look up the business filings for the company (provided you use their full, official name of course)