So, is there any value in chatting (online or on phone) with the sales reps? I mean, if I put upgrade in my card then that is the lowest price I can get I assume. In my limited experience when I engage a sales rep they offered to sweeten the deal by offering something additional at a discounted price but the end result is that the upgrade cost was the same and I just spent more money.
PS - not meant as a slam against reps. They are certainly helpful at many things.