Quote Originally Posted by navar100 View Post
There could be aesthetic value. D8 > D6 despite > not being large. Size matters. Half chance of rolling 5, 6, 7, or 8 subjectively feels better than third chance of rolling 5 or 6. Over infinite rolls it doesn't matter, but the instantaneous value of the moment does.
Yeah, it's possible for a player to make that choice, but the mechanics should ideally recognize intelligent players making somewhat optimized decisions.