You should be worried -- very very worried
Joey and Larm don't get it. MS isn't in the business of throwing away money and this will cost you eventually. As time goes on, you might be "slipped" a rebuilt instead of a new, and the used value of this unit, a year from now, will be next to nothing because of this. MS never intended to throw away equipment they had to spend money on in the first place. Bad units will not just "disappear" and they will have a cost attached to them. Expect requests for warranty repair to have a high "denied" rate and have MS claim abuse so they can charge you for repairs.
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