If you can create a system that people can trust in then you have gold in your hand. Human beings are looking for trust and integrity, most people refuse to invest into projects and gambling or dice sites not because the sites are not well developed but the developers and sites owners are unable to build integrity and trust in the whole process. I invested in Bustadince because the founder has a great trust and I have find out that before thinking of investing or even know what is backrolling. Focus on a dice site that people can easily deposit and withdraw and you will see many people investing into your projects.
I wonder in fact if a trustless system for Bitcoin investments in a casino bankroll might be possible.
Exchanges are starting to make non-custodial platforms. Maybe the same can happen for casinos eventually. You invest in a bankroll, amounts are locked and only unlockable (divestable) by you with private keys. The "easiest" so far I've seen is just by creating semi-permanent lines on marketplaces like Fairlay (you make your own dice markets, and people bet against you) but that's still a centralised marketplace.
Quite a few dice sites now doing well and I'm invested with a few. Transparency and trust, easy enough to understand the concept but fact is, all my Bitcoin investments in casino bankrolls don't really have full transparency (or at least, there's no way for me to verify the performance) and they all require me to fully trust the casino. It has worked great so far but any potential exit scam and I'm without recourse. End of the day,
all my funds are risked, but I choose to risk it with the ones I feel have been around the longest, and with those whose owners I've at least had some dealings with.
I'm fully aware that that only gives ME an individual sense of confidence in them!