How long do human vs human games (e-mail) take?

[Arkcon]

I would like to cast my vote for PBW as superior to email. Convince someone who wants to play against you to join and use it.

There is a potential benefit you can apply when setting up the game with automated turns that you can't get with email.

The game can be setup to run turns after a certain period of time. If a player has missed their turn -- either the AI will play that one turn or they can have nothing happen -- players choice.

It can help move things along.