As an owner, I can sympathize with the $16 "Martini". The Sex in the City Fishbowl sized Cosmo is part of the cause. $40 bottles of Vodka are another. I would put the cost of a 10 ounce Grey Goose Cosmo at $6-7. I would be tempted to charge $14-$16. Makes more sense to use a 7 ounce Glass, pour a six ounce drink and charge $10-$11. For years I had a customer bring her own 10 ounce glass with her.......