> If your scale is large, you have enough work to make full use of however many servers you rent. If this was close to true, AWS would not have existed. The th

> If your scale is large, you have enough work to make full use of however many servers you rent. If this was close to true, AWS would not have existed. The thing is, when you're big, you're planning for spikes, and you're paying for your maxima per month. (Spare capacity aside, as that has to be a percentage of your desired monthly capacity.)