Used Satellite Dishes?

Any good sources for used satellite dishes for DirecTV? Can't justify in my mind, no more often that I'll use it, spending $600-$1,000 for a satellite dish. I have a tripod mount dish that came with the coach when we bought it, but that's a PITA trying to aim/focus. Looking around for one of the dishes that find the satellite automatically, but it doesn't have to be a mobile tracker. Our local Craigslist doesn't have any listings. Just curious......