Thanks everyone for the advice! I will definitely check out that book. Did not know the flip mirror diagonals existed that's great! I'm not surprised to hear these aren't great for deep space viewing, knowing that all those amazing deep space shots were probably taken by Hubble outside the atmosphere I figured I shouldn't expect much unless I'm willing to pay $2000+. From my experience with rifle scopes, price goes up exponentially with quality and capability.
My motivation for getting a telescope was my parents got me one when I was very young. I remember it being an amazing experience a