Yep, it's amazing how low rent you can get to build a supercomputer...especially with web resources and an exploitable, educated labor market. Take the United States for example... sometimes you don't even need a datacenter, just a cheap prefab building on cheap tax break land. Hire one person to be software/storage/network/admin. Then contract a hardware jockey cause noone likes doing it and we're cheap. These said two guys could build cluster using supermicro setups installed into APC cabinets, hook up the I/O, and rock n roll. Biggest cost unless your nationalized: Power/Cooling.