Well, I've taken the plunge and ordered an X99 setup to replace my 5 year old X58/i7-920. I think this is probably the longest I've gone without upgrading my PC actually.
I've been putting it off for a while now, and nearly went with a 4770k/4970k earlier in the year, but felt like the 6-cores offered by X99 was a better reason to upgrade and its the first time since X58 that I've felt Intel's enthusiast line-up offered something that warranted the price tag.
In a lot of ways it's kind of depressing to think that a Intel's latest and greatest is only offering double the CPU performance, on average from the benchmarks I've seen, of a 5 year old CPU but I'm at a point where the rest of my system could do with an upgrade (GPU, monitor, SSD, HDD) and it seems like I might aswell spend a few hundred changing the CPU/mobo/RAM if I'm going to do that.
Plus at the end of the day double my existing CPU performance, whilst not a huge jump given 5 years have passed, is still a decent increase compared to what I have just now. I could have probably held on for Skylake but honestly I feel like now's a good time to upgrade for me. I don't really want to wait another year with my existing setup for Skylake to come out.
At any rate I'm excited about the prospect of getting a new PC after 5 years regardless of whether people think it's a huge leap forward over X58