It's all about life choices. I was lucky enough to find some land in a very rural area. I had a pole barn built. You would be suprised how cheap those can be. I finished the inside myself, 4 work rooms, a room on the end for the tractor and yard stuff, small bedroom and small bathroom. We lived in it for about a month while we built the house:
My wife used to complain that I have waaaaay took much room in that silly barn. She bought out a ceramic shop. 1200molds, 3 kilns ($2,000 if that aint cheap for a full blown hobby I don't know what is). I gave her the room I was going to put my woodworking, machineing, sanding stuff in. I told her she could have the room on one condition. She stopped making issue with the size of my "silly" barn. I have not heard a word since. Now we both spend evenings and weekends working on projects in the barn.
Construction photo:
http://www.rc-tech.net/per2/barn92702.jpgGary