Re: Youtube vids increased Monty Python DVD sales by 23,000% on Amazon !!!
Thanks hito, I completely agree with what you're saying.
To answer revox, my original point was that I think this proves that more exposure (through Youtube or otherwise) can only help sales (if it's worth buying... if you hear or see crap, you won't want to buy it, and your money will go towards something else that you like more).
People argue that this would mean lost sales, but with a 23,000% increase, it shows that there's no such thing as bad publicity. People have free access to good quality copies without needing to purchase but choose to buy it anyway, and I don't think it was just because of what they wrote in the More Info sidepane.
Will some people choose to not buy? Of course, but it looks like more often than not, people do buy quality products regardless and even moreso when there's more access to it.