I shop at Whole Foods for odds and ends. They charge a lot
of money for any store-processed foods. But buying raw products is quite cheap. I buy whole haddock for $2.99-$3.99lb there. Their bins of grains are very high quality and reasonable priced as well. Seasonal vegetables are also well priced (ears of corn were $0.25/ea this past summer/fall). The meat is a bit more than a supermarket, but again, if you buy whole and do your own processing it's not that much more. 75% of my shopping is done at a local Hannaford Super Market day-to-day, but I make special trips 2-3 times a month for items I can't normally source at Hannaford.
Yesterday I went for Valrhona chocolate, bulk "grains" (sushi rice, polenta, french couscous, and arborio rice), some bags of plain salted kettle chips, kaffir lime leaves, a hunk of Gruyere, and a pair of lamb shanks. Except for expensive boxed grains, my local Hannaford doesn't offer any of these things.
I do think their deli is terrible though. I haven't tasted a single prepared salad that tastes good which is unacceptable at $6/lb.
Hannaford "Inspirations" french baguettes are amazing. I have the bakery schedule on my 'fridge (I'm sick), and always head over when they come outof the ovens around 9:00am. Some day I want to learn how to make a "perfect" baguette.