Even if you didn’t plan on playing in the Bungie Day playlist because you deem your chances too low to ever play against the Bungie folks, you might want to reconsider. First of all, the slot machine always gives out 777 cR. And secondly, you can get a jackpot of 37,777 cR! Yes, that’s no typo: 37,777 cR - thirty seven thousand and seven hundred seventy seven.
Maybe it can go even higher - 77,777 springs to mind. But even “only” 37,777 cR is nothing to scoff at.
Good luck! 