There is some serendipity in him having perhaps his best game in a while after a post like this is started. Last night, in a big game, he was efficient (26 pts on 16 attempts), he took care of the ball (1 TO, a questionable dribble-carry in my mind) and he got others involved (8 assists).
The question of course is if he can keep playing that way and at that level. I don't think this game was an accident. It seems to me that this is how he is trying to play. He is adjusting his game based on who is around him on the team this season vs. last season.
I can't relate to $300M contracts. I have no idea if he is "worth it" or not. I am not sure it matters so much if his contract is $200M or $250M or $300M, it is more money than I can imagine in any case. But last night's game was a blueprint for exactly how Brown needs to play. He won't be that good every night but if he continues to focus on scoring efficiently, taking care of the ball, and getting others involved, like he did last night, he is going to help the team plenty.