For games, it's because they can play to earn instead of pay to win type of games.

For arts, it's more like a collection, because Art can make you feel something. Most of them felt so many things while looking at art—longing, lust, empathy, anger, disgust, desire, connection. Thus, desiring to make it their own would be their #1 goal. + considering it as an investment.

NFT community is really getting bigger, some projects are creating like social media dedicated for NFT that might be the next Instagram or Twitter.