DRY is _not a best practice_. Repetition is a "code smell" - it often suggests a missing abstraction that would allow for code reuse (what sort of abstraction depends on the language and context), but "blindly-drying" is in my experience the _single most frequent mistake_ made my mid-to-senior engineers.
My experience is mostly in Ruby though, so I'm not sure how well it generalizes here :-)
My experience is mostly in Ruby though, so I'm not sure how well it generalizes here :-)