If you don't have to make a crazy trip to get to one (I assume you wouldn't if you actually live in/near Boston proper), go anyways. There is a lot of good stuff to be had whether or not you find Robusto.
I never have been to Whole Foods,i think there is one on the other side of the bay from me. I do enjoy me some Boar's Head Smoked Gruyere from Publix.