Inexpensive? By American standards, perhaps. But for most of the rest of the world, the cost of that equipment and its installation is huge if not totally prohibitive.
But these costs are one-time costs, not monthly costs. But, I will agree with you, that for those families at the very low end of the income spectrum, they may very well be doing without, but sometimes entertainment is scarce and families make sacrifices to be able to afford some of these
luxuries in life.
From a personal point of view, several years ago, we did have DirecTV service but I started to analyze our television viewing habits and realized that the per-hour cost of our television watching is getting out-of-hand and we cancelled. And we never looked back.
Also consider that installation costs are going to be somewhat relative to the prevailing wages in those countries.
And that is just a portion of the cost. In most of the rest of the world, people don't live in single family homes in the suburbs. If you are in Madrid or Milano or Moscow, you have to get access to the roof of the building your flat is in and figure out how to run wires back to your location. The cost is considerable.
And in many newer multiple story apartment buildings, there is already conduit from roof locations to the individual flats and roof walls already have steel support devices tied into the concrete rebar specially for the mounting of satellite dishes..
With that said, people living in apartment buildings with say, 20 or more floors, the rent levels of such apartments are such that those people living in these buildings aren't being paid the average salary in the country.
Unless a person is the first occupant of an apartment (or perhaps more correctly, the first satellite user for the apartment, there may already be a dish on the roof, a working LNB and good cable to the apartment.
Let's take a country nearer the high end: Romania. Average household income is around $600 a month. In Burkina Faso it is under $150 a month. In Egypt is around $300.
Average income around the world
For grins and giggles, I pulled up Google Earth and Streetview for a random street in Cairo and saw multiple buildings, apparently apartment buildings with multiple Ku band satellite dishes on both the roofs and for apartments which were on the side of the building where the geostationary satellite arc is visible, satellite dishes on the balcony. But one problem with a lot of Egypt is the lack of Streetview for places outside Cairo.
Simply because there are multiple countries with low average monthly salaries does not mean there isn't any satellite receiving capabilities in many of thse homes. I think there is more than one might think.
To bring this discussion more to the meat of the topic, of all of these homes/residences with free-to-air receivers in use, how many were watching USAGM sourced programming?
No idea.