Oh yea forgot too mention, DD has too many passive skills to make turn based combat worthwhile. What will you do if you're a warrior in turn based? All you can do is click to attack and do the odd potion drinking or freeze spell (which usually lasts the whole battle on most mobs anyway).

Although there is alot of spells on the mages side that is actually only good
in turn based and strong mobs. How many are casting blindness and curse on the one-hit-dead-orc ? I prolly should go check out these spells, but my first impression of them were that they're not really going to play a role on something that will die with 2-4 casts of another offensive spell anyway.
And as there's not really that many bosses or difficult encounters i don't know how often they can be used effectively. Most difficult encounters for me are those when i'm surrounded by hordes and hordes of mobs..and blind and withering curse etc won't help you diddly in that scenario....unless it affects an area. (not sure if it does, so correct me if i'm wrong :P)

Either way DD has a very addictive kind of way of play, which i enjoy immensely. Just very satisfying doing a warrior-spin move and killing 10 mobs around you in one shot :P