I have quite a few sets of dice for D&D, nearly all of which favour aesthetics over balance. But saying that I prefer to use simpler plastic with rounded edges at a table. Sharp edge dice stop very abruptly and tend to show bias based on how they were held. The same is true of metal dice which are heavier, and tend to land instead of roll. This isn’t really the outcome you want.

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the_af 5 hours ago | parent [-]

Your explanation also makes sense. Why then do casinos prefer sharp edges? Casinos strive to remove skill as much as possible.

	▲	brendoelfrendo 3 hours ago \| parent \| next [-]
		Casinos account for this. In craps, you are expected to throw the dice such that they hit and bounce off of the farthest wall at the opposite end of the table. They may allow a roll that made it past the mid point if you just flubbed it. A short roll will not count. Dice must also be thrown and must tumble, they can't slide.
	▲	brador 5 hours ago \| parent \| prev [-]
		They stop sooner so more rolls per hour. House edge locks in as rolls count increases.