IT loves its enterprise data centers. Who can blame IT? Data centers are LED light works of modern art these days. Indeed, I like visiting data centers just to enjoy how they are designed and watch the lights blink.

The move away from enterprise data centers has been less aggressive than predicted. It seems that many applications and data sets can’t live anywhere else according to enterprise IT, and while cloud computing is an option, IT views it as a tactical solution.

The fact is that cloud computing is no bed of roses. Costs are typically higher than expected, migration is typically costlier and more complex than expected, and operations are much more laborious than expected.

However, cloud computing keeps you out the hardware and software procurement and operations weeds, letting you move faster, And, if you’re smart in its usage, cloud computing can make things much cheaper and lower risk.

Generally speaking cloud computing makes you more agile and cheaper most of the time. So why is there such a slow movement to move to cloud computing and shut down enterprise data centers? Here are the top three excuses that I’m hearing—reasons that they may not be valid in 2019:

Excuse 1: Legacy applications don’t run in the cloud. True, but they run on managed service providers and colocation providers that are more than willing to host your legacy workloads and data and also provide links to your public cloud of choice. Keeping a data centers to run these workloads is not a good excuse considering the number of managed service providers and colocation providers that for all practical purposes are legacy cloud platform providers.