Are there foods you seriously stock up on?

Everybody was amused I had almost an entire pantry shelf full of Kraft Handi-Snak SF puddings.  Granted I must have had over a 100 all flavors combined.  Considering theyre 40cal instead of 60-70 (that means almost 2 for the cals of 1 other brand), that I eat 1-2 daily, that I can only find them at one grocery store and that when they go from $1.50 to sale $1, why not pay a third less on as many as I can stock.  Now Im down to about 12 and wondering why havent these been on sale again (... grrrr ...). 

Other bulk stocked foods:
COTTAGE CHEESE - perishable but I eat so often, get 2 tall tubs at a time
EGGS - long exp dates and convenient to make
SALMON - again money, on sale I split into snack baggies and freeze
BLACK BEANS - takes care of serious hunger moments
PROGRESSO LITE SOUPS - so low cal, can even be a snack

I have loads of frozen vegetables in the freezer which only need to be steamed for 5mins to accompany all the frozen hake fillets I have stocked up. I have loads of these cheap cup noodles for days when I come home from a party and I'm starving but can't eat late at night. The noodles are only 60 calories for the cup! I wouldn't be surprised if it was really made of cardboard... I also have plenty of chicken breasts and piles of packets of wheat-free pasta.

Tinned tomatoes

Tea bags of all varieties

Beans

Different bulk grains -- brown rice, wild rice, quinoa, oats

Tinned tuna

Eggs (Seriously, I've been busy and stressed out lately and have been eating eggs for most every meal -- a couple for breakfast, a hardboiled one at lunch, a few with veggies for dinner.)

SF Jello and Pudding Mixes -- so at least if I'm going to eat it, I have to make it myself. Usually keeps me from doing so.

Nuts -- Pistachios, Cashews, Almonds, Peanuts. Again, with the bulk buy.