At this age I would get as much use out of anywhere and everywhere as much as you can.

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-you calling me old?!

Just kidding!! 

That is good to hear about not worrying too much about temp's w/ our Macs.  Moisture is not an issue at all, I live in California and not too close to the ocean (it's about 10miles from my home), but there is a small mountain range that blocks all the ocean air,  so the air is mostly dry. My garage is a converted workspace, it is pretty comfortable 95% of the time and is mostly insulated.  

Great to know!