It is still hard to find a 3930K. I thought the shortage would have let up by now. The yields must be no where near where Intel wants them, every
chip that has all the parts working to be a Xeon will be binned a Xeon. With the release of the server chips a few weeks away, Intel can not afford to have supply issues. $1000 for a 3960X is too much for many. The 3820 doesn't make a lot of sense because the motherboards are expensive and PCI-E 3.0 doesn't justify the purchase, just wait for Ivy Bridge.

I would pay $1000 for a 2.8ghz 8-core chip, but that is a long way off. This would probably be the highest bin for Xeons. Could you use a lower clocked 8-core Xeon (probably $1000) and use the 125 strap to get to at least 2.8? Some motherboards have supported Xeon's in the past, any plans for that now?

If I am going to have to wait many weeks more to get a 3930K, I might as well wait for the possibility of using a Xeon.