I bought a Global brand Santoku knife like 20 years ago and it’s still my favorite knife. It was when I got my first solo apartment and I had basically no kitchen stuff. Instead of a cheap knife block, I got one good knife.
I hate calling “purchases” “investments” but it might apply in this case.
Was going to comment about a knife as well but you beat me to it. Though I went with Wusthof. The difference a good knife makes a huge difference for cooking.
The same applies to cookware. Don't overpay buying a whole set is a waste. Buy the couple pots and pans you need individually and save.