Actually, I just realized I wasn't totally clear about what they're selling at the store:
They have sea scallops that come into the store already frozen, (don't know where they're from, but they're from the U.S.), which they display thawed (maybe they have more in the back that are still frozen?)
and they have sea scallops from Maine that they claim are fresh, and they sell for much more, although the sale price makes them only $2.00 more per lb than the "prefrozen."
Now that I've done some research, I realize that all scallops come in frozen, no? Unless they're caught in waters very nearby, and are still in their shells?