I bought a small amount of FUN tokens when Freebitco.in launched this back in the day, but I have not kept track of it's progress and I have never continued using the wheel spin feature, because I did it a lot of times ...and constantly hit about 50 Sat/spin.

I was glad, when I heard that the FUN token could be used at other casinos too, which gives it more utility and a reason to buy more. At this stage, it is less effort for me to have a fixed deposit at a Bank at a higher ROI... than investing in FUN tokens and having to spin a wheel of fortune for 1000s of spins to get a few Satoshis.

That is an added benefit as a Premium member which you become as soon as you get 2500 FUN in the balance at Freebitco.in and I think FUN has other benefits also,you can lock them for one year to get 25% APY for them and since you don't care much about following how they are doing I think it would be a very good idea to lock them as once the lock period ends you get a nice additional amount of FUN tokens for free (of course depending on your number of FUN) held in the site.
The daily spins can increase your Satoshis,Reward points and lottery tickets to better prepare you for the weekly lottery let's say as an example.