What's the use of metaprogramming?

Question

I\'ve read:

• Wikipedia
• Code Generation vs. Metaprogramming
• The art of Metaprogramming
• Metaprogramming at c2.com

and I

Answer 1

Start your Visual Studio (Eclipse, Netbeans, whatever else). Create a new project. Surprise - you've just used some metaprogramming, by creating a project from a template. Isn't it practical?