I was intent on buying the new Coin Rush packs, but they've waited too long. I've already hit 1,000,000 coins and 5 Shiny Stars on my file, Plus it's likely we won't get to choose which levels we want to play out of the pack as Coin Rush is randomised. Plus, as it's only Coin Rush levels, I can't play them in the actual game.
Now I don't want to waste my money on levels that I won't get to specifically pick out, won't have any need for as I've already achieved the purpose of Coin Rush, and won't get to play it in the main game.