It would be kind of neat if you could buy literal server appliances.
Something not unlike a Raspberry Pi, but with better performance and a chassis designed for stacking so you could have several connected.
It would have a slot for an M.2 stick or 2.5" SATA drive and you'd buy the drives with the software pre-installed. Bigger models would have multiple such slots and would run servers in VMs, and it would just work, with no setup required and automatic unattended updates.