Most Microsoft customers focus solely on price without ever considering product use rights changes that could prohibit their use of the software they are so concerned to get at the lowest price.
Over the past few years Microsoft has been making very significant product use rights changes, which result in many customers no longer being able to continue using the software as they have been.
Some customers will renew their agreements without knowing the product use rights changes have placed them in a non-compliant state. Other customers will find out from Microsoft in the eleventh hour of renewing their agreement, being forced to buy a more expensive product. And there will be audits where customers are surprised to learn they are out of compliance.