You are absolutely correct, and I think that one of the major downside to casino tokens is that they usually lack use case, and that is why their value will either take a very long time to appreciate to a very noticeable amount, or might never increase at all.
Aside offering token holders the possibility to stake their token for dividends of commission, there is nothing else I see the token can be used for, even the ability to stake and earn profit isn't even a usecase, and speculative tokens without a huge community hardly give good profit to its holders, but anyways, let's see how BFG would perform in the coming year.
There are a lot of factors that can negatively affect the development of a gambling project. I think the problem with crypto-gambling platforms like Betfury is that big investors may not be interested in buying tokens at all because APY for staking is small, while the risks are very high. Honestly, it's hard to imagine that any venture capital firm would decide to invest millions of dollars in tokens of some crypto-gambling project.