Earlier quoted context omitted.
>If you think Ubuntu provides you with $X in value but you literally do not have $X to your name, well, I'm not sure how it could be providing $X to you, then. I'm not sure I follow your reasoning. Imagine I have disposable income of $0 and I currently use Ubuntu. By your reasoning, Ubuntu is worthless to me. However, let's say that if you offered me $1 to stop using Ubuntu, I would say say "no". We can safely conclu…
You certainly do pay for national parks. If you're a citizen, you pay for it in income taxes and any money paid to local businesses while shopping that they then owe in taxes. If you're not a citizen, you're still indirectly paying through taxes paid to businesses while you are on vacation. National parks are not all funded by the entrance fee, they're government-subsidized. To answer the question, no it is not uneth…
Yes, but if you're a citizen you "pay" for it in a legally obligated way, so that payment tells an observer nothing about your preferences.
I spoke imprecisely, but my point was that there are resources which are free at the point of use which still have value to the user. Perhaps a national park was a bad example, I should just have said "the countryside".