Domes are severely limited unless you are only using a single tuner receiver.
When I first started living on the road I had an automatic roof dish similar to a dome. In just two months I started using a ground tripod with a DPP 1000.2 so that my wife could watch what she wanted which was never the same satellite as I was on.
I wonder if anybody uses two domes connected to a switch to receive both satellites (61 and 72) since only two are required to receive all the channels now. I am looking forward to the new flat panel arrays that I heard about recently.