FWIW I'm an absolute novice as well and I ordered the skywatcher 200p dob.
The reason I went for that one rather than a smaller, more portable scope is I'd read a lot of posts by people saying they'd enjoyed their 130 so much they decided to upgrade to an 8 inch reflector. I kind of figured going straight to the 8 inch I'd save myself a bit of money in the medium term.
I did a lot of research and most people say the scope, although large, is still portable in an average sized car. I've not got it yet so may be in for a shock when it arrives but this was my reasoning, if it helps. Comes very highly rated in reviews too, not read a bad thing about it.