Randomizers and Role-Playing Games

But was I in the wrong?

Reasons why I insist on the physical dice:

Fairness to the rest of the group.

Computer-generate Pseudo-randomness not very random

But Dice Aren't very random either.

As he was quick to point out....

I think if everyone was using the same phone, same app, the same way, and I knew it wasn't a modded app, then it would be okay to use the computer-based roller. For example, if running a Google+ Hangout game, with Roll20, if everyone is using it, then they are on the same playing field. But if some are rolling dice, some using phones, and some Roll20, that could be problematic.

The easiest solution for in-person games is to mandate using actual dice, flaws and all. Lucky and cursed dice and all.

I could be really uptight, and not let players use their own dice, only the dice I provide. For example the MerpCon dice set from years ago, all from the same production batch. At least then everyone would likely have the same lucky/curse issues. But that seems to be going a bit far, so I just mandate using physical dice.