Well, I'm a painter. (Not your grandma's house, but large-scale gallery pieces.) These days, most of my paintings (See: abstracts thread) are 30x40 and larger, so I need space for those. Especially considering I have almost a hundred out in the wild at any given moment.
Also, I build and restore vintage BMX bikes and road bikes as well.
Also-also, this space is right in the middle of the cool, hip neighborhood of my city, so when I get too wasted to drive home, I can go recover here on a couch for a few hours.
Who knows? Maybe I'll sit in here and write another book as well!