> If something is available legally and at a reasonable price (by which I mean not only available second hand for £100 as a collectable, rather than "99p for an MP3, that's outrageous" etc...) I either buy it or accept I won't have it.

You are assuming the world is full of honorable people like yourself. Unfortunately, that's not the world we live in. In the words of Scott Adams:

"The least effective system ever invented is something called the honor system. The theory guiding this system is that people are not huge weasels."