I think I have personally assessed the data center idea for the current K256 idea and at least in Indonesia it is actually cheaper to rent space and build a customized data center. Indonesia has a lot of positives for going this route. Manpower is abundant especially technical know how. Space in terms of commercial buildings with access to sufficient power. Finally given fabrication of PCBs can happen at a reasonable cost I think the COOP we have set up might be a way to get things jumped started here in Indonesia. If we can see Generation 2 chips from Avalon and BKKCoins can modify his current design to suit I think then a 1U will be possible for a standard data center. Given the overclocking the 1U I propose will need 700W and the oil submerged system, with heat exchange and an external cooling tower. Given the heat in Indonesia this might just be the most cost effective system in the longer term.

My plan.

1 - K256 prototype air-cooled (600-750W PSU)
15 - K16s on stanchions with my first batch no cases
44 - K1 nanos

I do love some of the case ideas here... especially the CUBES.