Two of the Three Eastern Arc satellites are now in place.
If you can check whether you can see the 61.5, 72.7 and 77 West slots, it is worth knowing. It is possible that some months/years in the future, everyone in Chicago will be moved to that slot, so they can use the 129 space for some other city.
If that happens, I'm sure that Dish will be paying for the replacement dish and repoint, but you don't want to be in a situation where you suddenly find out there is no view of 61.5 72.7 and 77 West from your home.
If waiting a month or two is no problem, then you may be able to get one of the first Eastern Arc dishes "Dish 1000.4" because they will be restricted to "new Dish HD only subscribers" at first, and that is you.
PS It varies quite a bit depending on location, but there is some possibility that you might want to be able to reach the Dish with a broom at some point in the winter.
Personally, I live where we get very wet "Sierra Cement" and I have to use Dish Heaters, but that seems to be unnecessary most places, but I would think that an unusual sort of storm (every couple of years ?) might cause you to want to be able to brush off the dish...