i pay about $500.00, for the privilege of having a Platimum AMEX. My flights take me to locations that have Centurion Clubs about five or six times a year.. I amortize that to just under a hundred bucks per visit. With that fee, certain I am NOT required to tip a bartender , especially a bartender who salts the bar with a few fives and ones as a not so subtle hint they want a tip. While I appreciate the service of a bartender pouring an adult beverage for me, not going to enable aggressive tipping to pad one’s pay check.
i do not tip in Delta Sky Clubs either. The money I have spent on Delta could probably get be a Net Jet card.
Now on the plane​​​​. I have extended a discreet gratuity to a few fight attendants who were pretty, attentive, and made me feel Important!