You're missing out, especially seasons 2-5. There's a bit of a dropoff after that but I still quite enjoyed that.
Now that the match is over: While I wasn't exactly right in the order of everything, I wasn't wrong either. Cas breaks the spell, Death thanks him and asks him if they should kickbox now(it sounded sarcastic but doesn't really matter) Cas stares at him, then Death goes to eat the food making his comment about reaping some (The winchesters) that's when Cas takes off. So that's not fleeing.