[W]hen there are more bagels in my refrigerator, I consume more of them. I think that's human nature. Call it the Costco Effect.
People are often price-sensitive about an initial purchase. But
after the money has been spent, there's a tendency to view the stash --
be it a pile of bagels or imported stout -- as manna from heaven. And
that's why I've often wondered if shopping at discount clubs saves
people as much as they think.
-- "Do Warehouse Stores Really Save You Money?" WSJ, Sep 26, 08
Neal Templin's column goes on to admit that while there's no formal research into the Costo Effect, a few economists suspect that people end up spending more money owing to their Costco habits. The theory goes: if you have more of something around, you consume more of it. Then you're thinking, "Well, I'll just get more," and before you know it, you've increased your consumption and the amount you're spending.
Personally speaking: my experience is the exact opposite of what Templin describes. Perhaps it's because of what we buy at Costo, but perhaps it's because of what we don't. For example, I don't get produce or baked goods or dairy there, because there's too much for two people to use. It would be wasteful to buy food that we know is going to spoil. We do get meat there -- but I tell you, the first thing we do when we get home is to split up all the portions, label them, and throw them in the freezer. There's no meat-binging, because it's not like we have four pounds of skirt steak just waiting to be eaten in the fridge. (Instead, we have eight individual portions in the freezer.) Phil gets beer there, but we keep it in the garage; he only brings in a bottle or two at a time to be cooled in the fridge.
Enough about us. Do you go to a bulk-buying club? Have you had to deal with a portion-control issue? How did you do it? What are the things you steer away from at those places so you don't end up eating a 96-ounce jar of trail mix by yourself?
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