Musket,

No one who understands the odds plays the lottery or gambles against a house (or lottery commission) that makes money.

The more you gamble the more likely that you will lose your money. You are paying a very high fee to do the tedious chores of pulling levers and scratching tickets. There is nothing rational about deluding oneself into giving away hard earned money with nothing but the endorphins from getting small amounts of it back in return. You money in the collection plate pays for music, charity, and rent for the a building.

Likewise, skiing and riding jet skis are irrational wasteful acts. One who risks their body and wastes their money to put them selves in danger for no more reward than adrenaline and the endorphins released when the danger is over, is committing a self-deluded and irrational act.