The cost to create an NFT collection will be higher as a lot of NFTs will be made, which requires more involvement from the blockchain network.

On top of that, unlockable content is a useful tool to add value to an NFT collection and a great way to create attraction on the secondary market.

To create an NFT, you need to have or make something that can be turned to a non-fungible token like digital art, memes or other digital collectibles.