It is about the value you place on better sound quality. I find each time you double (or better) the investment (a well researched and chosen upgrade), I get a “wow… that sounds better” to me. That makes me very satisfied and happy. So, on all my components, I have gone from ~$500 -> $1,000 -> $2K -> $5K -> $10K -> $20K over the last fifty years. Each has been incredibly satisfying and worthwhile. I could not be happier. Lots of people would have stopped at the first purchase and called everyone that went further a fool.
So, it is what makes you happy. I told you what makes me happy. If the market does well, maybe I have time to go to the next level. But if not I enjoy my system for three hours a day and am happy I did it.