Welcome to IIS Lost,
I thought it rained 300 days of the year on the NW Tassie coast - maybe you should get a radio dish
- sorry, I couldn't resist
Trying to decide on that first real scope can be a confusing and sometimes frustrating experience - bit of a pleasure and pain thing - it's fun to consider and dream all the possibilities though.
There's lot's of good advice below. I've never owned a Dob, but if DSO's are your thing it's hard to argue with the aperture per $ and as several have said it can always be made drivable later for photography. Perhaps Tassie could become "Dob State" (sorry Phil)
cheers,