When you have 10 boxes to manage doing it manually is within the realm of 1 person doing it and maybe even correctly! When you have 500... You will want consistency and repeatability. To this day I am still 'fixing' things someone did in the 10 machine area. 'oh yeah that machine is set up this way and the others are that way'. But I can not get rid of those 10 boxes because they became key infrastructure.