Luck or experience?
The way I see it is that successful gamblers experience gain and suffer loss but the most important thing is that something is left at the end of the day so that you can continue on gambling for the next day. Some gamblers are looking at this akin to an enterprise and so they usually rely on mix of factors -- certainly that includes experience and most importantly luck. There are gamblers who are superstitious and some even have rituals and will be waiting for some signs before proceeding to the game. And yeah, sometimes they can be funny really. I am wondering...is there a school or a degree in gambling?