I do not agree. A code habit is a code habit, and is installed once. If you are used to writing scripts that intend to print out large bulks of data , let's say, a 700MB file, and do so multiple times a day, a 500% increase in performance as found a few comments back might well indeed be substantial. What about if multiple users use those scripts ? Let's say, a 100 people, as is the problem in my case. Would your answer change ?