I'll stay here till my balance runs out.
Hmm, why dont you hope to get your balance doubled/trippled or even more? Saying "till my balance runs out", it sounds like that you have no plan to cash out when you are on profit or win big. Although it is your own money and you can do whatever you want with your money but I think it is better to have a target. Sorry if I misinterprete your words.
Provably he mean he want to enjoy his money until his funds runs out and I think just want to have fun even if he lose his bankroll for betting, And I don't have any problem with this especially if he enjoy the game more and he have a lots of money.
But for small gamblers don't do this act since this can also be called a irresponsible gambling so best to have a stop point in every bets we placed.