I finally realized what some people we're talking about and now I know why it's so ridiculous
There are actually regions that a zip code has access to a certain team on an RSN, but the RSN is not provided by dish in that zip code as their Regional Nets, so if they wanted to watch those games, they'd actully have to add the sports pack.
The example I found this for was NESN in fairfield county, CT. The teams on NESN are part of that area, but dish doesn't provide NESN to that area in the AT60 Plus and up package. Really dumb...