Exactly. I avoided IDEs for years thinking they were for lazy typists. Finally a friend convinced me to try one, and it totally changed the way I work. Just hit CTRL-space and see what you can do with it. Who needs to look up documentation when you can just hit CMD+B and jump into that library's source code? Oh the time I wasted...
If I don't remember a method or class name, I sure as hell don't want to auto-complete it into what I'm currently typing without opening up documentation.