I think when people say that they gamble in other to entertain themselves, it doesn't necessarily mean that they are not as serious compared to when someone is gambling to make a profit. Let's take  a typical online gamer for example. They practice all the technics just like you make your own analysis right?, but at the end of the day, they are playing to win and also for entertainment. Nobody likes to lose no matter the type of gambling that they are involved in, besides I haven't seen people joking around when they are after a must win, or in contention with others.