Well of course it's not practical. They could just get rid of the shopping channels, add other channels that people are actually interested in, and call it a day. Instead, they'll spread their money out to a bunch of different things bound to flop (mosiac, dish on demand, portable DVR, Suckfreetv) instead of offering more television channels.
I sometimes wonder if they forget they are a satellite TELEVISION service. They're not a gaming service, they're not a mall, they're not a best buy showfloor, their sole job is to bring me television channels of various interests, from around the world. Last I checked, people work out (oxygen, fit tv or whatever it's called), last time I checked, Football was quite popular (NFL network, CSTV), last time I checked the USA was a melting pot (additional dishes, and outrageous prices, for foreign channels, how about some japanese stuff?), etc...
Oh, and last time I checked, people liked their home electronics to be reliable...