Why is it recommended to establish a formal evaluation criterion when considering purchase of hardware for organization?”
So that your decisions are grounded in a consistent thought process instead of seeming arbitary and varying wildly. When you start buying gear w/o some base level of standards then the organization becomes a mis miash of different junk that costs more in terms of ownership since your staff has to spread their knowledge across multiple types of systems instead of focusing their knowledge on a smaller consistent set of systems. Many govt and municipal and other publicy funded organizations are required to have a formal criteria and even have to publish it and make it available upon reasonable request to anyone who asks.