I am not a 942 owner, but I agree 100% with those who see this as a big time ripoff by Dish.
Paying $700-$800 over a space of 6-9 months to end up with a leased receiver makes no sense at all.
I think the offer should be along the lines of:
A) For $99 you get a D1000 upgrade (if needed) and an owned 622.
B) Dish pays you $200 to swap out your owned 942 for a leased 622.
Dish makes money under B). You are now on a leased box, which is to their favor. You may be paying a monthly lease fee (to be determined). Dish takes your slightly used 942, performs some minor modifications, and sells as an ExpressVu receiver, probably for something like a $299 lease again, or sells it to ExpressVu for $350-$400.
A free swap of a leased 622 for an owned 942 would also be a ripoff.
Can you imagine a car dealership trying to do what Dish is doing? Hey, Joe. I'm calling to inform you that some of the computer features of the $25,000 car you just bought from me will expire in 6 months. If you want to retain them, and have us add a few more, then you can bring the car in, pay a fee, and then get a new car on a lease. We aren't going to give you anything back for your almost new car though. We'll keep it and sell it again.
Oh, and that new leased car will have only a one year warranty, so if anything breaks on it after that, it's on your dime.