The space wouldn't be DBS space and Echostar Satellite Services would be leasing the space, not DISH Network, their sister company.
ESS has a lot of Ku-band capacity for lease since DISH decided to stick with DBS frequencies instead of a hybrid of DBS and Ku. Echo9 is wide open and AMC-15 is, too. I"m sure a good rate could be negotiated depending on how much capacity you are willing to use - if you can book 10 transponders, that is 10 less transponders ESS has to hope to rent out to make their payments to SES Americom for.
With 10 tr's and H264/S2, you can have about 80-100 great looking HD channels to offer.
Ok, so in that case you need a larger Starchoice style dish that is bigger than even the Dish 1000 or DirecTV Slimline, so that throws out all apartment customers and some HOA customers. Plus, DirecTV and Dish already have more HD channels + the SD channels. We've already seen what happens when you try an HD only service.
And in terms of renting space from Echostar--Charlie Ergen is CEO of both companies. He may not give you worse terms than Dish; that would be unethical. But, you can be more than assured he won't give you BETTER terms than Dish, and Dish has millions of subscribers to spread that cost out over. Satellite capacity is a fixed cost that does not increase with the number of subscribers.
Check the Dish forum here. Moments after Dish turns on new "HD" channels there are complaints about the channels that are still not "HD" yet. The more "HD" that is squeezed in the happier people seem to be. Even here on the forum with the nerds.
My point exactly 8)