I have to put my 2 cents in. Yes, the field of amateur astronomy is wide. There are many specialties. Some love one and not another. My wife's and mine was sharing it with the public. Public and school star parties were our favorite activities. We always had our car packed for camping and star parties. Whereever we camped we would walk around the campground an hour before dark inviting everyone to look through our telescopes. One night in Yellowstone we were camped in a forested area. We set up our 13" Dob on the road by our campsite. We were surrounded by trees. After we ran out of good objects overhead we would move the scope so it could line up on an object visible through a gap in the trees. We moved the scope several times. If we hadn't known the sky we would have been in trouble. A go to scope would have been useless after showing overhead objects. Deloy Pierce