Excellent! I wish Americans understood the importance of patent and copyright laws, without which no one would spend a dime on R&D for new medicine or technological innovations and without which artists would be unable to make a living as artists (would Pink Floyd have written, recorded and produced Dark Side of the Moon if they would have only sold a handful of copies that would then be downloadable for free by everyone?).
I understand the point you intended to make, but Pink Floyd isn't the best example.
To this day, (if they were so inclined), they could perform live and sell out stadiums at $100+ / ticket.
Albums can make you popular, but touring makes you rich.