I agree with that. One thing I didn't mention in my original comment is that I think that there is often a rough correlation between elegant, readable code and at least basic efficiency. I tend to think that code that uses the right data structures looks cleaner. For instance, code using an array instead of a hash tends to look a little bit funny if it's constantly looking up elements by a particular attribute. This is especially the case today when so many excellent data structures and algorithms are already implemented in library code with nice pretty APIs. (I feel that I should mention, though, that the authors of those libraries probably worried a lot about efficiency!)
