Let me answer this question.

Fun, in general, is a feeling of enjoyment, amusement, or light-hearted pleasure. Money can be used to attain fun. People gamble for fun because there is always amusement and excitement when they win. They don't care about their losses. they are there solely for the amazing feeling of winning when their predictions are correct. Similarly, people willingly spend a huge amount of money when they go to clubs, parties, and participate in recreational activities, all in the name of fun. They don't feel regretful about the money they spend to derive that enjoyment. In the country where I come from, I pay money to play 8-ball pool because I don't have it at my house. Every evening, I dedicate time to go and play, even when I lose. I'm willing to pay more money to continue playing because I take pleasure in doing so.