We had an apartment complex put these up a few years ago when they re-roofed everything. They approved dishes to be mounted on them, and had two per building (about 6 apts per building). Unfourtunately, the trees in the area have all grown, so most of them don't have Line of sight anymore, and the apt manager won't put up any more. Maybe he will when all of his tenants move out since they can't get their dish latino any more.
Note: Not meant to be derogatory at all, this particular apartment complex just has a very large latino population, and they are generally very angry when we tell them they'll just have to cancel, or move.