It depends on what you're doing. Proxmox gives you the flexibility to figure it out as you go. If you have a plan from the start and you know what you'll need

It depends on what you're doing. Proxmox gives you the flexibility to figure it out as you go. If you have a plan from the start and you know what you'll need and you're pretty confident it won't change, then sure. If you want a box that you can slice and dice however you want (VMs, containers, etc) then something like Proxmox might be worth it.