Beware of isolating yourself and finding little to do outside of the home. If I gave up golf, I would have few relationships outside my PT job that provides a minor amount of human interaction but is hardly fulfilling.
After attrition doomed my Sunday morning roster of golf friends (a couple years before the pandemic) I joined a club to ensure I would have some golf tournaments to attend in order to satisfy my competitiveness. It is expensive, and I resist paying the grand each year in order to get on the club Whatsapp list to be included in the weekly tee times. I was worried about the political interaction with others, but found that golfers generally find other topics of consideration out of respect. It has been rewarding to compete again and winning and losing is just what it has always been- a time to feed the ego when I win, while realizing my own shortcomings when I lose.
I too, have the Wharfedale Lintons and your setup measurements are nearly exact to mine. They were the one upgrade that got my wife interested in what I was doing. (I would surmise it generally is always the speakers). Before that, I was generally ridiculed over the spending of monies seeking resolution. The Lintons arrival a few years ago was the moment that the wife took notice and started to realize my goals. That was a win.
So each year I recognize that I am spending an extra couple of thousand on golf that I could spend on upgrading my rig. What do I have to show for it? I would say a fuller life. More friends. A schedule that does not have large gaps to fill.
Tangible items, like stereos, are going to be someone else's someday. I have nightmares that when I pass, my younger wife just jettisons my gear for pennies on the dollar! I fathom that I will be looking down from above while she gives away cables that are, "just laying around". Maybe she will throw in those Ping clubs to close the deal!
So it is about the journey. Being an audiophile is as much in your head as the game of golf. You would be remiss to leave one for the other. Maybe now that you have reached a certain sound nirvana, it is time to buy a new set of clubs!