All these altcoins and platforms that offer very high APY's are not sustainable and will either lower them dramatically or just become a scam . I prefer a "lower" APY like 50 or 60% but that you know is sustainable in the long term.
True but i rarely seen a gambling platforms that does the same like meme token which has been offering like thousands percents or even more. Mostly of gambling tokens were offering realistic staking combined with dividend to the token holders based on how many revenue being received by the platform will be divided with total tokens that being owned by token holders. People will not also believe if the platform has been offering non sense APY like meme token.
It based from the revenue and it gives interest to potential investors who are also playing inside the house, they are seeing how the business works and what are the possible ways of earnings aside from trying some luck playing their favorite gambling games, those staking rewards are sufficient to hold their investment and wait till the value of the asset will grow.
Investing in casino tokens is similar to investing in gaming tokens like AXS, ATLAS, or ILV. They can't be considered a long term investment and is only profitable during their hype. They are also centralized so there is no guarantee that they will survive for many years and if the company owning them shuts down, the token will be abandoned and its price will definitely lose value.
Its not a matter of Centralized or Decentralized tokens, no one will be 100% guaranteed. If gamble tokens is good utility why it will not be long term? i see a few gamble platform surviving for the last few years and their tokens have good enough utilities in the market. But i'm not fan of holding gamble tokens, especially long term i will never invest.
A matter of choice and how you foresaw the success of any assets that you think will work for you or serve as your investment token, maybe from your view, gambling token is not worthy to invest your money, but for some other investors they are okay with gambling tokens, they belive that with the success of the business the chance is good for them to gain decent profits in the long run.