title: What are the big differences between IntelliJ + Ruby Plugin vs RubyMine?
body: <p>Being an owner of IntelliJ Idea Ultimate edition, and having installed the IntelliJ Ruby plug-in, I'm forced to wonder how different that experience is from using the RubyMine IDE.</p>
  
  <p>I'm guessing they share a lot of code &amp; features. What are the major differences?</p>
  
  <p>If I'm jumping into the world of Ruby, should I buy the RubyMine IDE or just continue using IntelliJ + Ruby plug-in?</p>