I'm not terribly invested in this game so I'd wait and buy the whole lot once it's out. But I assume they'll be selling each piece of the game for about $10, considering it should only be $60 for the complete game.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix