Well the way I see it this thread is for information for anyone to use, it's not just for beginners. If you don't find the information useful then ignore it.

If someone asks where they could find a certain part, they should be able to get an answer without some know-it-all telling them not to waste their money. How do you know this person is a beginner? How do you know this person will be wasting their money? Answer...you don't.