There is a timeless beauty to Aztec art and a sense of history that comes along with it.  Mexarte.com is a supplier of museum quality Aztec art and is a good site to consider when shopping for Aztec art.

The Aztecs is a term used for certain Pre-Columbian Mesoamerican peoples of Mexico. Sometimes it refers exclusively to the Mexica people, founders of the island city Tenochtitlan. Sometimes it also includes their two principal allies, the people of Texcoco and with whom they built an extensive empire in the late 14th, 15th and 16th centuries. Sometimes it is used to refer to all the Nahua peoples.

The Aztecs had a highly developed civilization and much evidence can be seen of that in their artwork which has a great detail within that belies the idea of "just wild savages" promulgated by the misinformed.  The Aztecs developed a major civilization in what is now Mexico and had much ongoing commerce and other aspects of what is considered civilized.  Aztec art is a tribute to their civilization.