you can call them up and request that they not send you any catalogs any more. You can also request that you dont get promotional mailings, retail flyers, bargain cave flyers, and club deals. You just have to make the call and tell them that you specifically don't want any of those. Heck, if you really want them to leave you alone, you can even request that they don't email you either.
Unless you let them know, they aren't going to change the way they market their product as their goals is to reach as many people with as many possible products as possible, hoping they catch your eye with something.
My guess is they aren't scanning message boards looking for people complaining about them. If you want something done, you got to do something about it. Pretty simple.