In one of my past lives, I managed an IT group where we processed ~50 point of sale transactions per second and did it on a two smallish application servers and

In one of my past lives, I managed an IT group where we processed ~50 point of sale transactions per second and did it on a two smallish application servers and a single "large small" Oracle database server. Our entire infrastructure only had about 10 servers... (including things like email, file services, redundancy, etc. and this was almost 15 years ago.) A few years later I was brought into another retail company that only did 500 orders a day... with damn near 150 servers. My jaw dropped on that one...