Here, we are speaking of both Intel and AMD platforms. Due to Intel's significant lead over AMD within the past seven years (in the desktop environment), they have gotten extremely complacent. DDR4 RAM is new to desktop computers, while GPUs have had GDDR5 (quad data rate) for years and some now use GDDR5X (faster GDDR5) or even 3D stacked memory? This is one of the things that triggers us the most. If the industry desired, there could have been DDR5 RAM already in desktop computers.
Then there is the very slow, incremental improvements Intel has been showing with price increases as well, but AMD is to blame here as they haven't been able to keep up. This has led to Intel limiting their own processors and gimping them more than ever. They are limiting overclocking more than ever, and have reduced themselves to no longer soldering the IHS (integrated heat spreader) onto their more mainstream CPUs, using cheap thermal glue instead, leading to temperature limited overclocking. Those that want to avoid this will have to pay more for their highest end X platform (Broadwell-E) where they still solder the IHS to the CPU die which leads to much better contact and thus temperatures, the process that used to be standard across all of their CPUs. But then Broadwell-E has inferior clock speeds and IPC performance to Skylake, causing Skylake to still be superior for the vast majority of video games. We are all caught between a rock and a hard place.
They also limit the i7 5820k and i7 6800k (last and current gen lowest end desktop X99 processors, $389 and $434 MSRP respectively) to 28 PCI-E lanes, still not enough to run two GPUs at full x16 bandwidth. If you want to use two GPUs, you better spend $600 on their higher end processor with more PCI-E lanes! Spending more just for X99 isn't enough, you have to get at least their $600 processor as well, since a few of today's cards and many future ones will strongly benefit from full PCI-E 3.0 x 16 bandwidth.
What we would have liked to see is competition from AMD. There is some hope for Zen at least. Competition leading to Intel not gimping their own CPUs so much, Intel still soldering the IHS to the die on all of their processors, Intel not being so cheap with PCI-E lanes on Broadwell-E, Intel not gimping clock speeds so much. Furthermore, we would have liked to see X99's successor use 3D stacked memory and X99/Z170 using DDR5 RAM. And perhaps Z270 should ideally use a superior DDR5 solution equivalent to GDDR5X?
There aren't signs of this changing any time soon. Early performance tests indicate that Zen won't be enough to create a drastic change, and Intel won't change for the better on their own.