What value does SolarWinds provide? I manage three days centers, about 4000 physical machines, and tens of thousands of VMs, switches, routers, etc. Never had

What value does SolarWinds provide? I manage three days centers, about 4000 physical machines, and tens of thousands of VMs, switches, routers, etc. Never had a need for anything SolarWinds provides, and we have tons of stuff in PCI-DSS environments...