We went Friday night to the opening reception of Ditto Gallery in Denver, and were blown away. The gallery promotes emerging artists and affordable art with an art-on-demand concept. They had original paintings and Giclees hanging and if you loved something, but couldn't fork over $4,000, they could digitally reproduce one for a quarter the price. I did see people buying the originals as well.
I definitely recommend this place if you're visiting, or live in Denver. The atmosphere is chill, they have some of the best art that's out there, and you can actually afford it.
Also they had a cool flat screen on the wall, called a Digi-canvas, that was showing more art from each of the artist exhibiting.