>>And its educational value is priceless: keep up with your IT knowledge, you don't want to end as a greeter. Don't they have retirements in this country?
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>I don't get it. I keep being told that such an environment is unsustainable. Is Walmart going to go bankrupt soon?

Not as soon as one would expect. They'll change a few things here and there, and maybe become a respectable business some day. Who knows.