Planning a shop build, any suggestions?

How set are you on 40x60? (2400 sf) It works, but it's basically a really big space with no natural defining shape.. I know lots of guys with shops that size.... But I prefer 30x80 (also 2400 sf) but cars wind up with defined stall areas, you can divide the bays with short walls give more areas to park tool boxes & shop tools like grinders & presses, you can section off an area for body work with a wall from floor to ceiling so the dust doesn't travel... Or section off an area as a machine shop or wood shop....

Just something to consider..