One of the joys of synthetic fabrics is the way they hold odor. My lower cost ones definately seem to be the worst at this ... I've got a couple of synthetic t's / long underwear tops that still smell right out of the wash. Most of my cycling jersey's are pretty good about not retaining smell ... but I have 5+ that I cycle through and am very conscientous about letting them hang dry. Even at home in the evening I hang them up to dry for 24 hrs before dumping them in dirty clothes basket.
You can pick up jerseys for cheap on ebay ... I also just got 2 Pearl Podium jersey's for $13 each at
http://www.rei.com/online/store/Cate...&seq=1&sort=2&