Life is all about regrets, mate. If you don't have any regrets then you probably don't have a life, as far as I'm concerned...
It's all about taking bold risks and following your heart, not the herd...
Philosophical mumbo-jumbo aside, I've seen people running GTX1060s with 1st Gen. i7s and getting close to 100FPS @ 1080p:
View: https://www.youtube.com/watch?v=J2UwgFDEoQs
One doesn't exactly need a 9900k clocked at 5Ghz to play modern AAA titles @ 1080p. This level of hardware is reserved for 1440p or even 4k gaming at 144Hz, which is a total waste of system resources, in my humble opinion.
I'm perfectly happy with 1080p @ 60FPS with V-Sync. Heck, I'm happy at even 720p because I tend to follow my heart, not the herd...
Your mileage may vary!