That's not a good comparison, because mixing your own chemicals for photo development adds
more time, effort, and defect rate to the process.
Becoming more proficient with TeX saves time and makes for more re-usable typesetting structures, which allow you to accurately do what you want faster and faster.
It's similar to using emacs or vim. You could say, "Why should programming devotees expect others to adopt those editors?"
It's about productivity. I'm a productivity devotee and when I hear people use short-term thinking to discount how valuable the up-front costs for learning TeX (or emacs/vim, etc) are, it motivates me to help them see why it's not true.
Of course, I don't want to be dogmatic either. If something works for you and your personal utility function discounts the value of things like TeX or emacs, that's fine.
Becoming more proficient with TeX saves time and makes for more re-usable typesetting structures, which allow you to accurately do what you want faster and faster.
It's similar to using emacs or vim. You could say, "Why should programming devotees expect others to adopt those editors?"
It's about productivity. I'm a productivity devotee and when I hear people use short-term thinking to discount how valuable the up-front costs for learning TeX (or emacs/vim, etc) are, it motivates me to help them see why it's not true.
Of course, I don't want to be dogmatic either. If something works for you and your personal utility function discounts the value of things like TeX or emacs, that's fine.