10$ into 5-10x I see the most success I have with games like Mines.
$10 becomes 5x or 10x then it's the same as $50 - $100 is it that easy you say? Because obviously the game you mentioned is luck because there is no skill whatsoever.
Maybe some people can get lucky quickly in mines or other house edge games, but it won't be long term even if I want to succeed quickly, I don't believe in gambling games.