It's a cool motherboard, but very limited upgrade path. If you go that route, plan on keeping the system for a long time. the RAM for that motherboard is very expensive, but you can put a lot in. It'd be really cool to 5box, and give 1 cpu per instance, and 2 for the main instance, and still leave 2 for everything else. I bet 10 boxing on such a system would work well too.

But it's still too expensive, and you have to buy 'server' processors. Its only worth it if you really need it. Other than multiboxing, most games dont utilize more than 2 cores very well, with the exception of Supreme Commander. That game will use every CPU you throw at it.