That's a thought.
Dish has a room full of 942s and must decide if the requestor is "942 worthy."
Dish is taking a loss on every 942 they lease for $250. I've heard the manufacturing cost is close to $500. Given that there is not going to be much residual value on these units when MPEG4 is released, and they have to eat the cost of a service call on most of the installations, they don't have a much incentive to offer this deal to a lot of customers.
Now if someone is a longer term customer who buys a lot of programming, then they know they will make their money back. Someone who isn't as good a risk, who is wanting the deal with no more of a commitment to buying the $10/month HD Pack for a year, well, they may not want to make this offer.