Thank goodness I've still got my Acer Reseller Channel.
My Rep told me it was a Special Edition only for Best Buy. And he confirmed what I theorized and posted above - the Bluetooth button is on all of certain series (in your case - the AS4700's), but it depends on the package ordered whether or not you actually have that option.
As far as he could tell, all Aspire (consumer) laptops, though not all Extenza (Business) laptops, have a webcam. What might have happened was that Best Buy double-tagged one laptop with two different - but similar - models.
Is it misleading? It smells like it - more on Best Buy's part, not Acer's. If you've got the receipt, I'd go back to the store and figure out what's up.