Symbolic renames are one thing, but sometimes you really want to do textual renames. When you have names like fooFrobnicator, barFrobnicatorFactory and quuxFrobnicatorController, and you want to rename Frobnicator to Twiddler, symbolic rename won't help you.

Also, you can create quite a lot of code indirectly by few well-placed keystrokes that utilize multiple cursors / keyboard macros, regexp-replaces and things like this. Think of it as chiseling out an entire block of code at once. Spend little time mastering those features, and you can do things like this on the fly, without much conscious focus.