TJs is one of the things that will ease the transition to life in New England. In the winter, (and fall and spring) when good local produce is hard to come by, they will still have their great frozen goods. Another post will discuss the trade offs involved in getting good produce. Local is always good, but setting up a climate controlled greenhouse to grow strawberries in Massachusetts in winter will possibly use more energy than growing them in Chile and shipping them en masse. New Zealand makes this argument about their sheep. The third option is to freeze or can local produce in season. Canned is likely the best option from an energy standpoint, but it doesn't taste as good. Freezing takes energy to maintain, but not only do folks like TJs do it better than I can, but their (I'm guessing here) large scale freezers are probably more efficient than the little thing above my fridge.
On a slightly related note, I've always thought it was odd that TJs wrapped all their fresh veggies in so much plastic. It seems like such a waste and put a ding in my glowing image of them. I just noticed the other day that the plastic is made from corn and is compostable. Cool. I am definitely setting up a compost heap in the new place. I want to take and old oil drum and turn it into a rotating composter.