I figured out why Whole Foods is always packed.
You have to shop every 3 days because apparently they haven't mastered pasteurization or preservation yet.
I bought some milk and some bread last Saturday because I was already in the shopping center at the LBS. The milk lasted about 4 days before going completely sour. The bread is already starting to get moldy (I'm still eating it, just tearing off the little spots of mold).
I'm upset, but not upset enough to go get my money back (even though it was expensive milk).