Upgrade components or replace bike

wruds

I have an 11 y/o Kuota Khama race. It is a lovely bike, when I ride it brings a smile to my face, super comfy and fast. It is stock spec, SRAM Rival groupset(which I love) with 105 callipers. I have upgraded the Shimano R500 wheels to carbon Vcycle 40mm. I am in a dilemma; the bike I feel has stood its time, the frame is perfect and it still runs well. I am due an upgrade, considered another Kuota or Bianchi. I was wondering do I just bite the bullet and replace with new 2020 or upgrade components- I want to move to SRAM eTap for clean shifting, replace seat, chain etc. Not sure where money would be best spent. Any thoughts. Thanks