Appreciate that the hold on say penny machines is greater than $5 machines. But does the payback percentage increase on variable stake machines the higher your stake is? In the UK,slots with variable stakes will often payback a higher percentage the higher the stake (and often make a selling point of this to encourage you to gamble at higher stakes). Usually it is 88% payback on 50p, 90% on £1 and 92% on £2. Do the slots in Vegas adjust similarly so that if you are playing say $3 a spin on a penny machine you have an increased payback percentage applying than if you were playing 30 cents? If they don't then it makes little sense to play $3 on a penny machine with say an 88% payback if that same $3 could be played through a $1 machine at 90%+. Or am I missing something here?