Have you ever found yourself spending more time trying to learn patterns than actually designing or coding your application? It's easy to do. With the maturation of .NET, suddenly everywhere you look you see presentations, books, and blog posts talking about this pattern or that pattern, each asserting that the other is inferior for some obscure reason. And you, being the mature .NET developer that you are, follow these conversations, desperately trying to find the "magic" patterns that will make your next project perfectly maintainable, easily extendable, and consistently scalable from the get-go. I know, because I've been there.