Plus: - The principle of being able to use your own computer, control your data, etc. - Educational value of being able to do things, like, make your own K8s

Plus: - The principle of being able to use your own computer, control your data, etc. - Educational value of being able to do things, like, make your own K8s cluster from whatever level of masochism you desire (rather than the necessarily higher-level options with cloud and VPS provider offerings). - Applications like home automation not dependent on Internet being up. - (Like the cost of data storage) GPU compute cost, and also "reserved" guaranteed availability. Personally, I also run some external services in AWS or Linode now, but in the past have run those from home servers and from colo boxes.