Artists of the world: stop selling yourselves short. Stop undercharging. If you are good enough to be in demand and be a professional artist, you darn well better charge what other professionals make. How much do you need in a year? In a month? A week? Per piece? Stop working for peanuts, you aren't making it any easier for those of us who are being realistic about pricing.
Clients of the world: if you want an artist to produce an art piece for you, to spend days/weeks/months devoting themselves to your project, remember that person is a professional. Be prepared to pay accordingly.
Disclaimer: this is absolutely NOT directed at anyone in particular, this is something I see ALL THE TIME and it pisses me off to no end.