To be honest, there is only one reason to continue to gamble. "I have shit tons of money and I have nothing else to do with it. So why not entertain myself" is the only reason that comes to my mind right now. Others who give reasons are just showing excuses to "cover" their gambling addiction from others, nothing else.
You don't have to have tons of money to gamble endlessly. There are faucets, free rolls, playmoney that allow you to play having nothing at all. So, it's rather about time than about money. Time is precious and you shouldn't spend most of it on gambling, but, for me at least, spending
some time on gambling is beneficial. I can do my job better after spending an hour on a turbo tournament regardless of whether I win or not. Call it an addiction, but it's a healthy addiction for me.