The point was not an upgrade of a receiver. I tried to upgrade the SERVICE once to receive HD (right when it came out) and they were so convoluted that I gave up.
The need to upgrade the receivers was because the old ones had problems almost every month and they always replaced with the same...
I'm finally fed up with Dish and I'm canceling it for good.
I had to buy my own HD receivers off Amazon since Dish was too cheap to upgrade the receivers I had since 2002. For some unexplained reason (most likely incompetence of the dish staff - what's new?) they have one of the receivers...