Are not modern games already going down this path with DLC? Buy the core game and then 'upgrade' it with post release content for the full game experience?
i love this game :)
strange how addicting it can be just to find the precise way to make your ship as great as possible
i agree with greg about the upgrades being fun enough to stamp out the point they were making
and the upgraded ending is so amazing, well worth the ridiculous amount of money it costs
this is the enemy, they suck
this is me, i pwn XD