We spent over $1000 about 18 months ago on what was supposed to be a high quality kenmore elitewasher and we are having the same problem with rust spots. It's a complete piece of junk.
I would recommend to everyone to never by kenmore agian unless they agree to replace all of our units for free. Let's face it, when you buy something to clean your clothes and it ruins them instead there's no reason to even walk in the store.
Hopefully customer service will deal with this appropriately. I'll be letting consumer reports know about this as well as they had the unit highly rated.
Reason of review: Bad quality.