-Tokens can be used as network currency. For donating, for buying things from the creator, etc. It can also be used for investment. If you think a band is going to blow up, maybe you buy their coin.
“Tokenomics” has become a popular term in the last few years to describe the math and incentives governing crypto assets. It includes everything about the mechanics of how the asset works, as well as the psychological or behavioral forces that could affect its value long term.