I highly recommend a dobsonian as your first telescope, but suggest getting a smaller one for your first telescope. The first reason for this is the cost. I understand you may love it now, but a year from now your fire may not be burning so hot to look at the stars. You can buy a nice 8" for 400 or 500 and while there is a difference, it's not that huge. My advice is to buy an 8", save the 1500$ and spend it on a dslr and practice astrophotography at the same time as practicing astronomy. Although in that case, a dobsonian may not be the best choice of telescope.
For reference, here are 2 seperate pictures of the moon. One from an 8" dobsonian, the other from a 14" autotracking scope(can't remember which brand)
Honestly thought we had more of the 14" but it's been 3 years and I can't find more..
and an album from the 8"
Please note that the difference in magnification is more from the lens used, rather than the difference in diameters. The difference in diameter would only give you more resolution so with the more magnification it will be less blurry.
Also note that the shit quality is due to the use of the stock raspberry pi webcam from 3 years ago. We were experimenting with using it for astrophotography.
Edit: Looking at our poster we definitely had more from the 14" but they aren't easily accessible for me.