It's not. You save money (OPEX and CAPEX) using diskless boot. For example debian in memory including everything you need on a server is just below 400M. We b

It's not. You save money (OPEX and CAPEX) using diskless boot. For example debian in memory including everything you need on a server is just below 400M. We builded a lot of datacenter services on PXE on the past years. It's always handy if you do require more resources than a single server can provide. It's like a container on steroids.