I love this argument. I agree the integrated graphics are just taking up space - but the rest is very interesting. It's a point I debated a lot before I made the investment. It came down to wanting the best bang for my buck, considering cost was an object, and the Canadian dollar is quite low, my system came down to roughly the same as if I bought it in USD.
Although the 6700k's cost was around the same as the 5820k, the motherboard would have been 40% more expensive, and that with all considered the 6700k has more IPC than the 5820k, which is what counts more and more for modern software. 6 cores will help for heavy video editing (which I don't do) and extreme multitasking, which is above my needs. I consider myself a power user, but I don't have nearly the needs of a guy like you, Rob (I do however drool at your system and the videos you post). Besides, I want to run SLIx2 but that's about where it stops.
In the end, I don't have enough free time to be on the computer to justify a system worth more than $2000.