Sounds like the retailer is trying to bundle refurbs without telling the customer. It's not like MS would attempt to "secretly" sell refurbs to the distributors/retailers..So the blame, if any, should be on the retailers.
Either way, I think it's important that they disclose if this is just real old non-Falcon Core stock that's dressed up with the memory cards, or a refurbished unit with Arcade pack-ins.
Back from the dead, I'm afraid.