There are a lot of tokens, many of them worth 0. The question is, why and which tokens will gain value in the longterm?
I'd love to buy a lot of coins, but many beautiful project doesn't need their tokens to release their products... I see a lot of tokens that have not use cases.. why should they go up?
Yes, there are a lot of coins that don't really have a use case. You should avoid these; they will only drop in value, and any rises will be purely to do with speculation rather than the merits of the project.