Reddit mentions of HP ProLiant ML10 v2 Tower Server System Intel Dual-core i3-4150 3.5 GHz 8 GB RAM 500GB SATA 7.2K

This is considerably better for about the same price.

https://www.amazon.com/dp/B01230V2U6/ref=cm_sw_r_cp_api_nfIMybWC7AJQQ

It has a much better CPU and it's in a platform where you can easily upgrade parts.

It also comes with a 500GB HDD and 8GB of Ram for on $10 more than what you posted.

Also it has a fan to cool the CPU. Fanless stuff is not good for anything that requires a decent amount of CPU usage. It will just thermal throttle.

Lovely when they do that.

What's your budget? I could see this as an easy upgrade path:

• Purchase an HP ML10 Server
  
  
• Move your disks over
  
  
• Move RAM over (if you'd like.)
  
  
• Sell off your current computer (or use for a media PC/friend/Whatever.)
  
  Gives you 4 clean easy to use drive bays plus a fifth if you take out the cdrom. Better CPU and RAM. This one would be even faster for PLEX and more VMs.
  
  

Still a bit pricey but it basically has the same features as the gen8:
https://www.amazon.com/ProLiant-Server-System-Dual-core-i3-4150/dp/B01230V2U6/

Edit: this is a discontinued model as well, I bought this server before I bought a Gen8, it's more modern though.