Have any of you ever sold your free play to another player?

At some casinos such as the Caesars properties in Vegas, free play comes in the form of slot coupons. These coupons usually can be redeemed by anyone as long as a Total Rewards card is inserted in the machine first.

At other casinos you can download (or upload) the points to a machine but once they are on the machine anyone can play them.

At some casinos, there are free play "chips" or tokens that anyone can use. At the Caesars properties in Vegas, the table game vouchers do have an ID printed.

So, in some cases the "free play" can be exchanged among players.

Have you, and is there a price for "selling" the free play?