Just to give you a comparison, if you schedule with a private mssseur who charges $150 for 60 minutes, the money is all his. If he really treated you well, you can add a bit extra on top of the $150. A $20 bill - $150 + $20 = $170 for 60 minutes which goes into the masseur's pocket. You got 90 minutes from Tony for $90 (he may get 1/3 of that = $30 + $20 tip = $50). Tony got a total of $50 for 90 minutes and you were satisfied and left happy. Do you think Tony deserved more for his efforts? I would have given him at least $50. I suggest that when you return for another massage, if you ask for Tony, let him know up front that you will treat him better this time or else he may not put as much effort into the massage and make you leave happy.