25' from ground is pretty good. I think the recommended height is 30' but that's dependent on various factors (mine is 30' from ground). I have a rotor but rarely use for the same reason as you. However, it's nice to be able to move the antenna around if it gets moved a bit in a strong wind or I just want to see what else I can get. I too am about 50 miles from the towers but I have a dead-on, unobstructed LOS to them.