There's no sound argument for why dynamic pricing doesn't improve the game, if implemented correctly. As has been mentioned, though, it was implemented incorrectly (it wasn't dynamic!) and, as a result, it ended up being a bad user experience. I do hope that they go back and implement it correctly now that SportsHub is in charge, but I don't feel like it's a pressing need -- there are multiple ways to win right now, which is part of the point.