Server prices vs Desktop prices

[silverzx]

Why are servers so damn cheap?

Is it mainly because they don't have beefy GFX cards?

Looking at buying one to chuck in the attic and back up photos etc to, use as an FTPS, Vent/Teamspeak server and possibly a MineCraft server or something similar in the future.

I was going to use an old Pentium 4 / 1GB DDR2 unit I have but looking at prices on eBay, it would be silly not to buy something like such:

http://www.ebay.co.uk/itm/141375366922

Dell CS24-SC Rack Server

- TWIN (2x) Quad Core Xeon 2.5 Ghz (L5420) - Intel VT-x (Virtualization) - 64-Bit - 12MB Cache - 1333Mhz FSB
- 12GB RAM PC2-5300P DDR2 ECC
- Embedded SATA RAID Controller - Capable of RAID - 0,1,10
- 4 x 3.5" SATA HDD Bays - (2 caddies supplied) - Ready to install 3.5" SATA Hard Drives
- Dual Embedded Gigabit NICs

Just browsing eBay seems there are some bargains to be picked up!

I haven't had a proper look, will spend a few hours looking over today/tomorrow, but I'm fairly sure I want to set one up!

I don't have any experience with servers so any techies feel free to contribute to the discussion (Ruan).