Mmmh I don't share your thoughts, while I can see the benefit of having a higher single threaded performance for some tasks, I can't see that an inctrease of in price of 169% more over the 5820k has any leverage, when you are talking about the ram, well, the 5820k and the 5960k shares the same type of ram, so I still don't understand why you may want to invest so much more for a little more performance, just a 23% more of performance, no matter if you compare it with xeons, because those are totally different computers, no overclock, more expensive parts like the motherboard, more power drain, more noise, more maintenance, and yess, I like more a single CPU computer than a multiple cpu computer.
I'm comparing two CPU's from the same family that can live inside the same system, the difference is that you invest 169% more money with one than with the other to get just 23% more of power, I can't see the benfit of it :)
Cheers!