After years of dealing with colocation, I would never deploy a server without KVM in a data center. The cost of truck rolls is just too damned high! Even with KVM, I have had to make an emergency trip to a data center that is a 3.5 hour drive away due to a hardware errata on circa 2010 Intel Xeon boards where the network port shared between the KVM and the host would lock up under certain rare circumstances. The second time that happened I pulled the system from production.
If you do happen to have a system without on-board KVM, check out NanoKVM, which is a cheap (~$40) option for an add on KVM. It's rather more affordable than PiKVM. https://github.com/sipeed/NanoKVM
If you do happen to have a system without on-board KVM, check out NanoKVM, which is a cheap (~$40) option for an add on KVM. It's rather more affordable than PiKVM. https://github.com/sipeed/NanoKVM