What's DLC?
Nine times in ten, it is a method in which EA/Activision play on your hopes and dreams to entice just a bit more money from your wallet.
For that remaining tenth, DLC is legitimate downloadable content worth having; Skyrim’s DLC does a pretty solid job expanding the world and belongs in this category.
As for the OP:
Word of caution for your guy/gal: somewhere in Skyrim roams a pack of discontents kneecapping adventurers; best keep an eye out for that.