Hire From Wherever You Like
The guys over at 37signals prove that another advantage accepting the remote working ethos is the ability to hire from wherever you like. This was the attitude of a company I used to work for. They hired some of the best software developers and programmers from around the UK and we worked together in a remote environment. Dare I say it, worked rather well.
In traditional office environments, everyone needs to travel into work every day. This means that you either recruit from around your location, or offer relocation packages. It really cuts down on your choice when hiring new staff.