I also particularly enjoy ST's ability to "wrap" a selection if you type a character that it makes sense on (a bracket or paren or quote).
Try it, select a word and then type a double-quote, it will wrap the word in the quotes. Super slick.
Also I think this is a digression.
To bring it back on topic, I sure did pay for ST3 once I got my rMBP and couldn't be happier. I never use anything else to edit files.