Here in Puerto Rico dish started giving customers 6' dishes for dish 500 setups (110/119) I remember the rain killing the signal fast, with light and stupid clouds.
(not enough signal coming in from their sats at the time)
Dish then moved to 4' dishes for the 500 setup and the rain would still cause frequent signal problems but not as bad as before.(A bit more signal coming but still kinda jerky)
Now they offer 30 inch dishes with dual LNBS(a significant increase in signal for the area) and sorry but NO, dish increased their signal for Puerto Rico residents and right now I bought two 6' dishes in order to have few dropouts instead of the 30 inch dish.
In short dish started sending a weak signal to the island which costed them even more requiring the big dishes for such a weak signal, over the years their signal improved and they could save money by installing smaller dishes until they finally got the right signal along with the right economic dish. Just imagine if the entire CONUS required 6' dishes?

thats a lot of money for installs
is the 30 inch dish bad and causes mayor signal problems? Nope I have an apartment on the east side of the island(30 miles away from my main home) and I have the "El Yunque" national rain forest in between my 30 inch dish and the satellites and I get very few signal drops.
It all depends on the area in which you are for
BOTH cable and satellite.
I remember trying cable a few years back and it was total crap in my area while some of my relatives have it in their home and it works great. another advantage that cable has in bundled services which save the subscriber money but still in some cases compromise on quality and limit the subscribers options.