Progenix Oj101
Dealer
Server parts are significantly more expensive than gamer parts. 64k does sound overpriced, although you could probably inflate it to that buying from Dell/IBM with a fat support contract. The machines we use (buy componentized) - proper Intel server solutions with enterprise-class SSD's and good hardware RAID (although software RAID's pretty much caught up) cost around half that, and we still get 3+ year warrantees and 1-day response from Intel on any issues, although it's not on-site support. But we maintain 2 entire racks and have hardware/networking staff, so prefer to handle that part ourselves.
Edit: in reality, it's more likely they're using the managed solutions, the R2395 server + SSD addon specs pretty much line up with the article. 6TB of bandwidth x however many servers there are should be enough to run the site.
http://www.hetzner.co.za/dedicated-servers/truserv/truserv-commerce
My PC is mainly server hardware...
2x Xeon E5645
EVGA Classified SR-2 (there are server equivalents which cost around the same if not less than the SR-2 did with onboard graphics)
48 GB (12x 4 GB) ECC Registered RAM
2x Intel 320 Series 120 GB SSD (avoided SandForce)
8 TB worth of storage, mainly WD RE drives
Be Quiet Dark Power Pro 1200W PSU (a 600w PSU would suffice without graphics cards, probably something from Zippy/EMACS or similar)
Corsair Obsidian 800D (for the cost you can get a 4U chassis)
For less than R64k I also got my three Radeon HD 7950s, a GTX 580, a Sound Blaster Zx, Areca ARC-1231ML RAID controller...