A gambler will always remain a gambler until gambler decides by themselve to stop, a gambler doesn't just stop because he has won some huge amount of money, a true gambler regardless of any amount he has won continues to gamble because it has now become more of a lifestyle than for just the money alone even without realising or agreeing to admit it. So yes if I win something big from gambling, I can buy a car or a house and will still choose to re-invest some money back (an amount i can afford to loose) into gambling which gave me the money in the first place, because definitely I would love to win some more.