Yes if the site is down you loose reader/buyers (in the end money) But keeping the site up also cost money. So context is really important here. How much mon

Yes if the site is down you loose reader/buyers (in the end money) But keeping the site up also cost money. So context is really important here. How much money do you spend on the last % of availability vs how much money so you loose on downtime. In my experience people have a more complicated setup then needed because of availability, but at the same time have not tested a real DR scenario.