Why not pay for such a great service? Why quible over such a low price?
You might be different than most people. But paying 20USD for a couple of bears and drinks is nothing yet when it comes to pay for music ad libitum people suddenly become very aware of their money.
I am not casting any blame, just interested in why people rationalize like that.
The question turns into, "Why is Spotify more worthy than any other organization, for-profit or non-profit, of my $20 donation?"
If you want to make business out of something, price it. I'm not going to "donate" if you are not some non-profit charity organization. But I'll gladly "pay" the same amount.
Business accepting donation feels like a convenient way for them to deny responsibility because, they didn't sell me anything, even if socially people will tell me to "donate".
One geek, two bears and lots of drinks - what a sight :)