Tell this to the football fans, almost all of them love doing this, the higher the numbers of pick they have the higher their rewards, this is what all of them think about, nothing else, as if they are certain about winning.
I have only seen a brother who choose one match or two and risk money on it, mind you he always have better results than those greedy gamblers that likes packing up to eight or even ten matches at once, they have this stupid idea of making million in one go.
Almost all football gamblers that I know do this and they never have good ending, not even once, there is always a loss out of all the matches that spoil everything for them, it's not good to be greedy in gambling, definitely not the right place to use greediness.