Well this is mostly true,but it isnt...Yes you need to put a lot of money to win a lot of money and it is almost like that especially for singles and for singles or doubles this is 100% true
But you can get rich with small amounts only if you put giant parlays i used to win odds bigger then 200+,i wanted to give my money for a candy bar for example 2 euros and i went to my Local Sportsbook and i made a parlay of a giant size and won 600 euros
So there is still a chance to win bigger amounts with small money,but mostly you need luck,but as you guys are talking you need a bigger bankroll to win big and get rich,im my country most people just bet on parlays,there is not much singles,its all about parlays,but still no body is in a big plus,while here on the internet everyone does singles and doubles,In my VIP group i do the same i give singles and doubles,for me its going great for now great plus this month,hopefully i will continue for another couple of months and gain a certain amount of money!!
Regards and good luck with your bets
