With dobs you just plonk them down and start observing. They are a completely manual mount but very simple. My youngest son has been jumping around the sky using mine since he was just 5 years old, he's a real pro now at 6 and a half
The beauty is that theya re very simple to use and you are really paying for the optics not the optics and a fancy mount.
However, if astrophotography is important them a scope on a good GEM is a better choice although you can get a dob then buy a heavy GEM later when the budget allows and use the scope as either a dob or an equatorial mounted model for photography.