think about it.
i have already stated my case. doing thing the most efficient way,
1) speed of development. with good data structures and ease of use of my tools, i can create programs to do my task in less than a few minutes.
2) with a good tool, I can have better control of the things i want to do, reducing the chances of writing redundant code. With less redundant code, my program/script will run faster.
If you are not going to say what you meant, then what's your point in posting?