title: Is there any scenario where the Rope data structure is more efficient than a string builder
body: <blockquote>
    <p>Related to <a href="https://stackoverflow.com/questions/1862703/public-implementation-of-ropes-in-c">this question</a>, based
    on a comment of user <a href="https://stackoverflow.com/users/88656/eric-lippert">Eric
    Lippert</a>.</p>
  </blockquote>
  
  <p>Is there any scenario where the <a href="http://en.wikipedia.org/wiki/Rope%5F%28computer%5Fscience%29" rel="noreferrer">Rope</a> data structure is more efficient than a string builder? It is some people's opinion that rope data structures are almost never better in terms of speed than the native string or string builder operations in typical cases, so I am curious to see realistic scenarios where indeed ropes are better.</p>