Basically, we have 10-20+ years that we need to look at when we are talking about long term and not just short term. In that case I would assume that the most logical situation probably would be just hoping that the casino you picked can go along the furthest compared to other places, and just do not deposit a lot like you said. There are people who wager with millions but I am pretty sure they have more than enough even if they lose that.
" if they are offered. And even small amounts will not be bet. But it's true, who knows what will happen in 10-20 years 
It's kind of reminiscent of long-term government bonds. Someone is in fact and buys them.
So probably some individual people will be found - and will play on such a long-term dispute. This site may find them, but there are too few of them.