That's exactly. Im agree with u. Its just gambling. Bet, win or lose its not E=mc².
But it is (martingale method) nlose + win = win + quit = win. The only method that work to book a winning is quitting if you are winning. Else you will lose em all. So the best strategy is having control of yourself and know when to quit. That would sum it.
Its not a best strategy i think you are just wise if you do that.. choosing a game and be wise in order to get a good result and profit.. as you can seen here in forum you can see almost other members are saying that sports betting is more good to choose than to gamble in dice game or any other gambling games since both skill and luck are needed in sports betting you have a high chance that you can win a good profit..
Also if you know that you made profit be satisfied. because being greedy is one of the reason why many people are losing in gambling..