I posted this before, but it got buried.
There is a terrific sale on Kitchen Aid mixers/accessories, as well as other brands' bakeware, at Kohls.com. (Kohl's is an east coast USA department store) If you your Kohls credit card, there's an additional discount. I just bought a 6 qt mxer bowl replacement for $33. KitchenAid.com sells the same bowl for $59.
Thanks for the info! I did get a replacement bowl from its website last year; maybe it's time for the ice cream maker attachment!