> But, you don't have to, and if you don't I can continue
    not buying it for as long as I want - but I can not just
    say, "I don't like your terms of use, I'll just pirate it
    anyway".

I'll ask you what I asked someone else. What if me, you, and a few others are hunter gatherers living off the land. I somehow get the bright idea to build a house on some land, herd animals, and grow crops. Then I say, if anyone else wants to copy this, it'll cost you 10,000 bananas. So what's the verdict - is it right for me to have a monopoly on my idea? I came up with it after all. Is it immoral for you to copy it without paying what I ask?