[yummy]

Sometimes normal verbal communication is just faster. You will never wait 30min to get a simple answer. Want to debug something together? You just do it right away on your computer.

And if the office is like 30 min away from home, there's no commuting problem. Yes, that's an hour a day, which is still potentially significant, but on the other hand you don't work at home. I hate working at home and I'm not alone.