I understand your frustration, which is quite common when investing in altcoins. That is actually the reason why I avoid such investments.
However, what motivated me to acquire FUN isn't its growing potential, staking or even extra WoF spins, but raised interest rates on Bitcoin balance.
If you have a decent amount of BTC invested in freebitco.in, to hold some FUN becomes more interesting, as you can see on the monthly spreadsheets.
12,500 FUN gives you access to the best cost-benefit premium program tier.
For me the biggest advantage is if you are a regular casino player, in my case I am not, although I have an account and I go from time to time, but the extra interest does not attract me at all, for the same reason that I commented in another post.
For them to give me an interest I lose control of my bitcoins, so I only have a small part there, even though it is a very reputable site, but very reputable sites we have seen go down. And as for the extra, it is 25% on 4.08%, or 1.02% more, making a total of 5.10%. For me it is not worth it because in the long term investing in bitcoin will have a much greater difference in profitability than that 1.02%, and it is also safer.