Since demon dust only has a chance of making a nether orb hatch into a demon, any chance we could let the player use multiple dusts per egg, to get a higher chance? This would have the effect of decreasing the average number of (nether demons per dust), because if you use 2 dusts and they both succeed, you still only get 1 demon. But it would admittedly also decrease the number of nether orbs you used up.
Demon Dust is going to be changing drastically in the next major content patch. It’ll be more like a 100% chance that it’ll give you a demon…but work entirely differently.