As for me, I started developing Rails apps in 2007 and I think it continues to do what it does best, focus on it's core product offering: metaprogramming. For example, here are a few commands that continue to make the Rails experience awesome.
Create an out-of-the-box app using a single line of code:
rails new [app_name] -m https://raw.github.com/RailsApps/rails-composer/master/composer.rb
Why does this single line of code kick ass? Simple, the prompt helps you build out your entire development and production environment using a single line of code.
First it asks whether you want to build a starter application.
Then it asks you which type of application. I picked rails-devise-roles so that I can offer user registration, authentication and roles.