I'm an artist who wants to use bitcoins for nearly an identical reason. However, there have been two big limiting factors, which have prevented my supporters and artist peers from using bitcoin.
1) It isn't clear how they get money into and out of the system. - The artists don't want a bunch of 'bitcoins' that they don't know what to do with - The supporters don't own any bitcoins, and don't know where to get them. 2) They are afraid that bitcoin will crash and they will lose all their money.
It's easy enough to dissuade the fears about the second point by 'cashing out' right away. But what are the best options out there to allow the average user to put their money into bitcoin, and to allow not-so-technical users to get money out of bitcoin and into their bank? Coinbase is the only service I've found to 'easily' do this, so far. Even at the cost of my anonymity. :(