ABC Carpet in NYC has a major antique rug sale going on. It's fun to flip through the examples they put on their site. Real antique oriental rugs are made with vegetable dyes and not modern dyes which weaken the wool fibers. Few man-made things are more lovely, and you hate to put them in places where people will step on them with shoes because they can easily last a few more hundred years if treated properly.
(Thanks for corrections of my errors of fact, Commenters. I should never say anything about something I only know a little bit about...but if I stuck with that rule, I would never say a thing. The word "dilettante" has two connotations.)
On the left is an antique Turkish Konye; on the right is an antique Iranian Bakhtiari.