Why does DAS not include price information for token X?

I want to get the price of a certain fungible token but DAS is not returning any information relating to price. Why is this?

Helius does not track the prices of all tokens on Solana, we are set up to index the most popular and well-known tokens. However, we do have a system in place to add popular new tokens to our index. If you need to access information about the price of a particular token, please contact us through our Discord.