I know that very well, that's why I didn't feel comfortable comparing free software to a bicycle and added ", I guess".

Well I thought I could say this anyway, probably because I was thinking about the old time when I was using linux although it didn't even have any real X desktop.

But indeed : free software is about freedom, not money. You're right to insist on that.

Let me add however that a bicycle has some common points with free software, because it is mainly a public domain designed device. Two wheels, some pedals, and other stuffs I don't know the english words for. All of this is the product of some inventors and is now general public knowledge.

Also, even if GNU developpers may charge for their software, it is impossible for them to forbid redistribution. So, ultimately free software always has good chances to be found free or charge, somewhere.