Product wise DENT could indeed become a great use case for a working product on the blockchain, with an actual day to day usage base.
As for people investing in it for profits. 10 billion coins would probably mean it will never become worth more than $1, but hey, that's what many people say about XRP too
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I have small bag, used to have a big bag, but decided I am not going to wait for years for this one to become $1 or more.