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Dude not all corporations will allow you to build a workstation.
True, but it depends on the specific situation (requirements, budget, IT capabilities, ...).

Apple does the same if you phone them and ask them to lower the price a bit.
There are specific discounts available for those who qualify (Education, Government, Apple Employee for example), but I've never heard of discounts for anyone that didn't qualify for one of these sorts of programs.
 
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