I have seen that some of these coins are not for investment, but it all depends on whether the site is willing to give them a more appropriate value for that, for example they should motivate investors more, that if they buy a number of them they give them a benefit of Inside the casino, or if they start to buy more, they hold a trading contest only with those coins and the prizes can be in NFT, or BTC, or something like that that can have more visibility, the coins or tokens that do not have much publicity It's hard for them to be seen, they have to give a lot of motivation to generate more investment, Rollbit can launch something like that whenever they want, they have good capacity.
If as an investor, I am required to invest real money to join a contest which it's prize would be NFT, sorry, I will never join such a contest, that is not even a contest but a rip off, NFTs are just a way to grab money from people, majority of this who own NFTs in different places, find it difficult to sell it because there no liquidity for them, So please forget NFTs.
If Rollbit launches their own token and make it available in the general crypto market, I think it will do well, based on the fact that Rollbit is already a very popular and reputable casino..
But then on the other hand, what will be the use case for the token that will keep it doing well for long time, is a question that must be answered.
Not sure if you are already aware, Rollbit already have their own token $RLB which allows users to enter a Lottery where 100 People win prizes of a share of 20% of the casinos expected profits each day. As well as the potential chance of winning a jackpot.
The thing that keeps the value is not only the increasing expected profits as the site grows, but also the fact that the token is deflationary.