Humans are really really bad at undestanding randomisation. Weighting dice is the best way to stop people thinking you're weighting the dice.
I will have to remember that the next time I am in Vegas.
Vegas does use that system - they are allowed to change the odds for randomized games, e.g., slots, based on recent high wins (lowers odds) or continual losses (raises odds).
For myself, loaded dice will always be off because it addresses the wrong underlying problem.
