Arthurian mythology is a fun slippery slope. Once you read either, you will want to read the other. Then another. Finally you end up with a bookshelf full and proudly brag that you own the Arthurian Encyclopedia, even if you can no longer see the words. Then you re-collect them in epub. You translate some tales painfully and slowly from Old French. You take university courses on the historical Arthur and write a paper on Geoffrey of Monmouth. And then you get really intense. Or was that just me?
Wait what was the question?