Probably what are you saying is just you are kind of lucky during the new year because you can feel that you will win on this day, as a gambler I am also playing and gambling in which I have my superstitions and beliefs before I play because I believe that the luck may come if you have some things that can attract on it, but this is only in my part in which I am believing of those kind of sayings by the elders.
Casinos never changes although there is a massive social issues of factor that may come, it is always up to the gambler on how he/she play and how they will won on the said gambling platform. If you think that you are lucky during new year then probably go and gamble every new year to win a huge amount of money.