Cloudy or stormy days or nights mean bad things for the normal size dishes, and the big ones can get expensive (in sat tv dishes, the bigger the better). Is the reason sat tv sells more in the south and southwest USA and the Mexicans pirate them, places with lots of sun and fairly clear skies.
Sat tv benefits? Free if you can find a card programmer (fairly easy in the U.S. due to cable or DSL modem card programmers that are out and the hackers are in the Bahamas (literally) thus are NOT under U.S. law), subscription is cheap, less expensive PPV and MUCH more channels than cable (there's a LOT of sats up there!).
You can even use a P/C over a sat if you have the equipment, good upload and download speeds too!
Cons? Bad weather or the Chinese use their sat killers later on in the years coming?
Seriously though K, sat tv rocks the house, though the internet is still cable or DSL in my book!