What is an NFT worth today?

As someone delving into the world of digital assets, I'm intrigued by the concept of Non-Fungible Tokens, or NFTs. Can you elaborate on what determines the value of an NFT today? Are there specific factors that investors and collectors consider when assessing the worth of these unique digital assets? Furthermore, how do market trends and demand influence the pricing of NFTs, and what role does scarcity play in determining their overall value?