I also think its a way to shorten the life span of the CPU's (20 degree higher in temperatures by using thermal compound and not soldering must shorten the life of the CPU)
Intel until recently had no competition, and every intel CPU i3-i5-i7 generation was never a massive jump in performance on release not like it used to be in the 386-P2-P3-P4-Athlon64 days.
I mean i have a i7 920 2.6ghz CPU in a drawer when the motherboard died i moved onto Z170 i5 3.5ghz skylake and did not see an increase in performance really actually maybe a small decrease. (it was an i7 to i5 downgrade though, but a 8 year gap should have been a massive upgrade and it was not)
Ryzen has changed all that and when i do upgrade thanks to AMD, an 8 core CPU's will be the minimum i will be buying.
The link below is an i7 920 vs a Skylake i7 6700k not a massive jump in performance for 8 years is it?.
https://www.youtube.com/embed/qkhzaBzvp9M