That is the whole concept behind 20x200 - a company that connects brilliant artists with promising buyers.
I stumbled across this site during my daily browse through design*sponge and was instantly hooked. The company basically provides a platform for featuring available artwork (for $20!) that buyers can choose from. With only 200 produced and each numbered, 20x200 is able to keep that "one-of-a-kind" feel to the purchase without forcing the buyer break the bank. Thus, preventing the situation of having the same exact artwork as your friend/aunt/mother's best friend from occuring (unless you forward the link and they all decide to purchase a copy as well. In which case, I can't help you).
A great option for a bare wall, mantel or floor corner, here are some of my faves but there is plenty more where that came from. Try framing and featuring on a bright plate stand, easel or pairing with a series of blank canvases. At this price and with such a great variety, look for pieces for the living room, bedroom or even bathroom. Happy browsing!