If you are a seller just wait for an uneducated buyer to come along and blow off those that are fretting over the IMS
If you are a buyer just look for one that has already been upgraded (that is what I did) or factor it into the price. You might get a $2000 discount on a $10k or $15k car but most people aren't willing to come down more than 10% so its usually a waste of time.