That's a bit mad alright. The odd thing from reading it though was that... it didn't surprise me in the slightest.
As Forbairt says, I reckon this is just a deal/pressure from their suppliers. There's no other reason I can think of for this kind of change, I mean obviously apart from the reasons that the Dell spokesperson outlined... obviously.
It seems to be the way of everything these days. e.g recently learned that the new Volvo cars will only take a certain type of motor oil... this motor oil is 3 times more expensive than your normal diesel oil, and is also thinner, therefore burns quicker! OK, so Volvo aren't Dell... but I would think it's been a similar "deal" done with the HD (oil) supplier.
I wonder if this will effect PowerEdge sales at all...