I would prefer an office because it establishes a boundary between work and home but can't justify the expense. I have no problem focusing at home I guess I just have a "going to work" mentality.
I could never rent an office. I work full time and run my business from home. Imagine having to go to the office after work?
You said it .. i have been working in a friends office for no rent for this week and man what a difference.. I'm still looking for office space for myself..