Picture a company with its own on-prem bare metal servers. Over the years they have had space to expand but projections show that soon either a new data center

Picture a company with its own on-prem bare metal servers. Over the years they have had space to expand but projections show that soon either a new data center will be needed, either in addition or to move to. Doing so would require a huge capex to either migrate the existing hardware to the bigger space or to reachitect their topology to work on a multi-DC setting. Or you can look at the oldest servers in the fleet, that are scheduled to be decommissioned in the next N years, that have HDDs that are a small fraction of the capacity of the new ones. If you crunch the numbers, it can start to make sense to just say "we just pay the premium for physical density and increase the time before we're in the same position by M years". If M is large enough, people will jump on that option as fast as you can draft the Purchase Order.