gamblers still like dice because the martingale sometimes work for them. the amount of money they bet is what they can control.
I have tried martingale on 3 odds games in roulette and I also tried it on 2 odds while gambling with dice. Martingale will be used but the newbies and later leave it when it failed them. Have you played in a way that you will think that the gambling site is scamming you like they are manipulating? It is not manipulation because I have experienced it on several casinos. It is house edge.