I understand the effects on kiting of IAS, in that it lets you get Arcane Orbs out faster.
However, I wanna ask about the effects on DPS.
I've always thought that IAS lets you have a higher Arcane Orb DPS as well because as per the words Damage Per Second, more Arcane Orbs out per second = more damage per second.
However, I've come to realize that after your initial blast of 3-5 Arcane Orbs, which do indeed come out faster, your Arcane Power regeneration is a static number that doesn't become faster from IAS. This means that the amount of time you have to wait until your next blast of 3-5 Arcane Orbs is the same as the other guy with a 0.9 attack speed weapon and 0 IAS, to quote an extreme example. In fact, that other guy with a heavy-hitting weapon will hurt more with his next blast of 3-5 Arcane Orbs, even if he gets them out slower than you.
Don't get me wrong, I understand the benefits of being able to get Arcane Orbs out quicker, but I was just wondering about the overall effects on DPS. Any thoughts on this, anyone?
Edit: Does this also not apply to channeled spells like Disintegrate as well? Kiting effects aside, while you do get to dump your AP faster with a higher IAS, you are waiting the same amount of time for AP to regenerate for your next dump.
Further edit: The 'Damage' number in the character screen seems highly misleading, as it is Damage Per Second, as its tooltip reveals. However, given the same amount of AP, the damage that you receive from spells that use AP is actually the same isn't it (albeit that a faster IAS allows you to deal that damage faster than a slower IAS)?
This is to say, the only spells which truly benefit from IAS, kiting effects aside, are signature spells that don't use AP. This is because given the same weapon damage, a higher IAS will result in an indefinitely sustained increase in number of hits, and higher damage over the same period of time.