Vim is perfect for lazy people. Trust me, I know about laziness :)
Just picture this: You want to delete one line in your file. With Vim you just press 'dd' (that's 'd' two times). Not impressive, right? But what if you wanted to delete 27 lines? Are you going to select them with your mouse while counting? You might prefer to type '27' and then 'dd'. Done.
Do you want to jump to line 2135? type :2135 and press enter. What if I want to find a string? /string. Oh, and then I could just press 'n' for the next occurrence.
I needed years to only grasp a few Vim tricks, but every single one of them is almost mind blowing. I've only find Sublime Text to be a rival, for other reasons (multiple cursors are ideal to trim log files 100x faster while troubleshooting).