One of the downfalls of any scripted, uncompiled language is that it is going to run slower than if the code were compiled. While that may not even be perceivable, it still takes up extra system resources which you could need to allocate to something else. If the scripted program is large and complex enough, it could take it a while to chug through the interpreter and spit out the appropriate code. Now, if you run this script several times throughout the day, that's extra processing power and memory you're taking up, and over time that could add up to quite a bit of wasted power.
