Great choice! Doing visual astronomy with a Dob is a great to learn and gain experience and real expertise. Dobs give wonderful stable views as your learn the sky at your own pace, and they offer a lot of satisfaction right off the bat. An 8" Dob is also something that you will use and enjoy for a loonnggg time, even as you upgrade to more complex telescopes. A Dob is (not a lot of) money well spent.
I highly recommend getting a smartphone astronomy app to show you where to point your Dob, and computer planetarium software is a real teaching tool, as well a great way to plan what is currently available for you to see.
Dobs are also great equipment for affordable DIY upgrades, After you learn to use it (and get a few upgrade eyepieces) consider adding a "setting circle" to the base of your dob so that you can start doing Push-To astronomy, It is an easy upgrade (lots of instructions and ideas in the CN forums).and it is just about as accurate as, and faster than, most expensive GoTo systems. You can even add equipment to create GoTo Dobs, but for me that sort of takes the fun out of using a Dob - I also have a couple GoTo telescopes, BTW.
Newbies starting out with expensive GoTo telescopes tend to get very frustrated unless they have access to experienced amateur astronomer support to show them how to use the equipment properly. The complexity required to use such equipment can takes weeks of study and experimentation to learn on your own.
A Dob telescope is something easy to use, that teaches your a lot, about the basics. Enjoy it.