Bitcoins fast and free only faucet, gambling is good enough to get bitcoin fast and free, but you must find gambling sites give promotion or giveaway, such as sign-up bonus.
gambling sites with promotion or giveaway usually go along with some kind of conditions like: you have to wager X% before you can withdraw. That can be a problem too
yes gambling may give you fast bitcoins and in huge number of satoshi too. but gambling is always very dangerous to our investments. So, we must gamble with low bet amount.
Gambling can not be a way of earning bitcoins when we consider it's negative aspects. To earn and to keep your bitcoins safe we never try gambling.