@frans82: Regular PC like this is great for high VPN performance, but it comes at a cost of electricity consumption.
I have run my pfSense router/VPN box on a regular PC for years without realizing what it actually cost me.
For me it was about 65kWh per month (90W PC, 720 hours every month).
If you are running your own web server, VPN box, router, NAS and few VMs, this may make sense, but only for VPN perhaps it's too expensive.
@frans82: What's the energy consumption on this machine? How much does it cost per month to have it running 24/7?