Unavailability isn't a game, but an energy.

A man is drawn to a woman he can't "get" right away. Not because she's elusive, but because she can't be bought with attention.
Unavailability isn't coldness, but a calm confidence that she doesn't need to prove her worth.
When a woman chooses not to play the "be convenient" game, she becomes a threat. Not to everyone—to those who are used to winning. And therein lies her power.