Someone (possibly the owner of the business) buys the sexiest new laptop computer because it’s on sale at the moment. What a great new computer! Unfortunately, it was purchased with Windows 7 Home Premium, so not only is it incompatible with your existing network, it’s also been purchased with an operating system that is not intended to work on a business network at all. That new laptop is going to cost 200%-300% more by the time it is working on the network.
Your business purchases computers on a tiered basis, replacing 1/3 of the computers each year. The new computers go to the power users, their old computer gets handed down, etc etc, and the oldest computers are decommissioned. This means there is never a true “standard installation” of hardware or software, and that the older computers are always out of date. It also means that you’ve got three environments that need to be supported.
Your three year old server is really slow. You don’t remember it being slow like this when you first purchased it. It must be time to replace it. $5,000 later, you’ve got a brand new server and your data has been migrated. But can you believe it, it’s only marginally faster than it was before! Frustrated, you engage a third party consultant to help. They advise that (and there could be so many things going on, but here’s just a couple):
... your ethernet switch should be replaced at a cost of $400, or
... your DNS is not performing efficiently and should be reconfigured at a cost of $150, or
... you need to replace the network cable to the server at a cost of $5
Oh well, at least you’ve got a brand new server!