Dish is finally building out my home tower near Olympia, Washington. They extended the tower height by 8'. Seems to be a common way Dish is getting on towers around here. Not a common strategy from other providers in the past. I imagine it's pretty expensive to do it that way. Engineering, structural design, construction, more extensive permit review, higher lease fees being in the top position.
But they are trying to reach build out status on licensing. So you gotta do what you gotta do. Probably 0° downtilt too.
Robert