I am at that stage now, so will invest in a decent HiFi kit sometime this year. I guess I am also a bit old school in that I don't really listen to music while working etc., so things like Spotify and Apple Music etc. are not my thing. I treat listening to music as a bit of an event, that harkens back to my younger days of having album 'listening parties', so I expect I will still consume my music that way again once I get my record player.
I expect that when I eventually retire, I will end up writing code for Arduino devices and other things because it is what I truly love to do, and I never want to stop learning something new.