All our rugs are handknotted 50+ year old oriental rugs, and by definition, they are used. If this is what you're dealing with, and you like the rug, buy it.

Also look at the rugs at HomeGoods too.

I've had limited success cleaning my own wool rugs myself. I mean - it's not easy to have space to dry them after all.
I hate the carpet machine cleansers (and they don't rinse out) so I mostly just use water.

If I bought it I'd just go so if I really loved it and I'd have it sent out to be cleaned.

http://www.bergmanns.com/carpet-and-rug-cleaning.html

http://parkwaydrycleaning.com/carpet-rug-repair-restoration/

http://www.hadeed.mobi/site/schedule_service.php

We just bought a lovely used rug for only $100. The cleaning cost twice that (they had a dog) but it was still a deal.