Sigh...sorry, it's all about business, nothing is complicated, and business is often done with short sight, short term gains, instead of efficiency, long terms. I remember 5 years ago I wanted 4 room dtv, they had to install 2 identical 18" dishes. Today, one dish with a switch accomplishes the same thing and more.
The concept is there. I wish there's a market for a small single dish that is upgradable as more sats go up, smarter receivers and switches. Come to think of it, the technology used in satellite is being worked on for years, even decades, they should be able to see things in advance. That'd reduce landfills and redundant work.