In another thread we were discussing other deck builders. I mentioned that one nice feature of Dominion is that greening clogs your deck, thereby creating a negative feedback loop where scoring points (usually) lessens your ability to score additional points. In contrast, certain other deck builders have a positive feedback loop, where the powerful card are themselves worth lots of points. I was originally going to suggest the following as a rough analogy, but instead I decided to present as a (purposefully flawed) variant.
At the end of the game, each card is worth 1 VP for each $1 of its cost. So for instance, King's Court is worth 7 VP, Cellar is worth 2 VP, Philosopher's Stone is worth 3 VP, etc. I suppose this is really variants:
A) Only costs count (e.g., Province would be 8 VP)
B) Ordinary VP counts also (e.g. Province would be 6 VP + 8 VP = 14 VP)
What do you think would be the consequences of this variant? Would you still buy green often in variant B?