I used to have a large dobsonian telescope made by Orion. It had a good quality mirror. It came with features like automatic tracking.
In general, a dobsonion telescope has a simple design that made it cheap and easier to use compared to other telescope setups. The dobsonion mount also allowed for a large aperture that would have been unwieldy otherwise. For me, it is an example of how complex things can be made simpler and easier to use.
I would add binoculars in general are pretty amazing - putting the distance between optical elements of a refracting telescope into a small ergonomic package.
In general, a dobsonion telescope has a simple design that made it cheap and easier to use compared to other telescope setups. The dobsonion mount also allowed for a large aperture that would have been unwieldy otherwise. For me, it is an example of how complex things can be made simpler and easier to use.