In the USA, most authentic Chorizos are banned because of USDA regulations on the origin of pork and curing methods. The American-made commercial chorizos are disgusting because they are made with fillers, additives, chemical "starters" and other horrors.
They are just salty-tasting monstrosities, like expensive Slim-Jims.
There are some locally made chorizos which are not bad from local producers, but you can buy real Spanish chorizos which are pretty good and legally imported into the USA because they are made from Danish pork, which passes USDA regulations.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=370139269312
The whole thing is ridiculous, but even in NYC one cannot buy decent European-made sausage or salumeria.
Most American-made cured meat, such as imitation
Proscuitto, is horrible bordering on inedible.