This is a great idea and I'd like to play, but would not be interested in paying cash. I like the idea of contributing something of value, though, and so propose a system where the participants jockey for position to obtain decants from the other players. Perhaps something like this (assuming a 12-team league):
Winner - gets one "X" (whether value or volume) decant from each other player
Runner up - gets one "X minus Y" decant from each other player except winner
Third - gets one "X minus Y" decant from each other player except winner and second
Fourth - gets one "X minus Y" decant from each other player except winner, second, and third
Fifth through Twelfth - the winner of each playoff game gets a "Z" decant from his/her opponent
We'd have to work out some details, but this could be fun.
Let me know your thoughts. FYI, I have been playing fantasy football for several years now and enjoy it, as well as the associations with the other team owners, tremendously.