We all know its going to happen one day. That's why Charlie spun off Dish from Echostar. That way, he can sell Dish to at&t, but still keep his familar hardware to use for another DBS service. Like that one mentioned to cater to Apartment, Condo, and HOA customers.
Plus he can also leverage the TR-50 with IPTV as a cheap alternative to dbs/cable.
They way I see it, you make big $$$ on growth. Since Dish has nearly reach all the homes it can sell too (ie it has nearly all of the DMAs covered), its growth is about to plateau. So Charlie will want to bail on Dish before this happens. Then he takes his Ca$h and starts a "new" dbs company that is in a different market that Dish. He starts this up and gets to grow a new company. Plus since he still has Echostar, he doesn't have to worry about hardware from external owners. But thats just my thoughts.