I remember a period when we had 1 satoshi on primedice, and I did that because it was the lowest allowed there at that point. All in all I have to say that it's going to be something that would be realistic for people who has fun with gambling because it gives them a chance to gamble the way they want and it makes them do better job because they just like to gamble and that's it.
I still use this value just 1 satoshi in one of the casinos, maybe it will look stupid but my target is not to increase my money there but rather to take other benefits and increase the level of membership which will also provide other benefits, likewise when playing slots will use the minimum bet until I feel the need to increase it but usually not above $1.