[maxlybbert]

I've heard speeches by Stallman where he mentions he has enough money that he no longer has to work, but as others have already said (1) he started working full time on GNU before he received that money (and supported himself by selling free software and prioritizing requests by people who sent him money), and (2) he doesn't live an incredibly opulent life, even factoring in the free travel.

[pmoriarty]

It doesn't take long for "free" travel to become more of a burden than a benefit, even if you don't consider the hassles of going through customs, immigration, and security lines at airports.