[glend (Glen)]

Not daff at all Ray. When I moved into my retirement property I considered the same thing, but for me a dedicated building was not justifible because I have a large detachd garage/shed at the back of the property and inside locked gates. I have a pad in my backyard for my 16" GSO and it is usually rolled out there to observe. However, I built a custom base out of marine ply which includes attachment points for th classc dob wheel barrow style handles, so moving it around is easy. I find that keeping the dob in my garage/shed is best for me and its a straight paved rollout to the pad. The be can be poured, or large format pavers (which I use). This way I don't have to worry about the cost of, or security of, a separate structure. My garage/shed is protected by good locks, and is separately alarmed as well - not that its required in my area. One great benefit of the big structure is plenty of room to fiddle around with collimation, mods, etc and storage for scope stuff. Good luck and be aware there are some new production big dobs being released later this year - 20" GSO and 18" Lightbridge.