Unfortunately, the periods when you need extra power because your 'kick ass application' has had some excellent publicity will enviably occur in the middle of the night, or when something else is on your plate forcing you to divert technical resources when you can spare them the least.

Infrastructure issues kick you when you are down.

'The cloud' is still in its infancy, but the goal is to let you sleep soundly at night. Its getting there, but has some distance still to go.