The 10$ investment is well worth it. I really enjoyed this add-on. The new DLC hits on December 29th. It is going to be an arena based expansion, I'm not sure how I feel about coughing up 10$ for that add-on.
It's also single-player, and of course you don't have to "cough up" anything if you don't want to.
The sun has fallen down
And the billboards are all leering
And the flags are all dead at the top of their poles.