[FpUser]

"Coolness" is not in what I use inside my product but how "cool" customers think it is because of features, robustness, price etc. It feels very "cool" to me when my products work and serve customers.

>"Now, I am a maker of the new development tools."

This is a part where I spend money. Good tools are very valuable as they directly save me time / money.

>"The point is that many new tools and technologies bring a very limited value to the finished working products."

Even for new ones. For example my servers are modern C++. In theory I should be using Rust / Go for new ones if I listen to a chorus. Guess what modern C++ works just fine for me and produces stellar results hence no reason for me to switch. I do some toy projects with new languages / tech to get a grip and be aware just in case.