The 3930k is not in the same category as the just released Haswell processors. SB-E is designed for the top end premium performance and extreme categories whereas the just released haswell processors are in the low end premium performance to mainstream performance categories. The upcoming replacement for the SB-E processors is IB-E, the haswell offerings were never designed to replace SB-E.

Not to mention the 3930k has 6 cores whereas all of those have 4.

Absolute performance isn't everything. The ratio of power consumption to performance is also important. In some cases, so is keeping maximum power consumption and/or heat dissipation under a certain threshold. But it looks like the i7-4770K falls behind the 3770K on power consumption, so I'm a bit disappointed too.

Power concerns are not common among the people that buy K processors. And for stable overclock disabling the C-states is usually a good starting point.

Is comparing a hex-core to a quad-core apples to apples? Haswell per core performance is still better although it will be a long time before we see a hex-core part.