It does sound kinda cool, I wont comment on the chances exactly but I appreciate the aim of a moon shot type deal where you try to get the best chance rather then by an accumulated distribution. My quick idea to improve odds or returns is to stream the wheel spins on Twitch and also post referral link for anyone wanting to join, if you could somehow publicize it maybe contact someone who already does gambling streams then you could benefit that way for sure. My reference for that is many gamble streams are quite modest but attempting many times for a grander prize, can easily get an audience.
I wasnt sure if there was a limit to keeping them and I only got to like 50 before I used most up. Nice to know if I go away a while they stack up for when I get back. The other aspect I kinda think about is the variable reward via the volatility in BTC pricing and thats always going to be there imo. Doing the spins when price is lower brings a higher reward in BTC terms so I always like watching pricing for the swings it goes through, on a thousand iterations that potential difference adds upto something.
It is usually giveaways that draws people to gambling streamers. If you have a casino that can help you with affiliate links, you just share that on your stream and either make it a competition or a giveaway. If people stay there, and then share stuff with you, like screenshots of their accounts or whatever, you can pick one and give some money away to some giveaway winner.
However one thing is for sure, competitions are more fair situations, get people to join from your affiliate link, gamble and the one with the biggest gamble gets the prize. It doesn't matter how you do it but in order to get people to be interested in your stream, you have to do giveaways, that is the marketing of twitch. You may also partner with other streamers, if they are willing to host you, that would probably make a good amount of profit for your streams as well.