I read somewhere that in turn-based mode, recovery time doesn't matter, people just take turns based on their Speed stat.
Is that really the case? This would make Mastering skills a lot less useful, since for 95% of offensive spells, the only benefit between Normal/Expert/Master is faster recovery. Has anyone tested this?
Most spells give bonuses per skill level, so if you want to be effective you need to put skill points into it. I think all spell schools have some important benefit from increasing your mastery level just from utility spells alone (fly/TP/Lloyd's etc). Anyway, if you put skill points into a spell school in order to become more effective, then after skill level 10+, all that separates a novice from master is like 7k gold.
Regarding recovery in turn based mode:
I just tested my monk with and without haste. Vs 1 goblin, I'd get off 1-2 shots before it was his move (2 shots probably 70% of the time ish), but never 3 shots.
With haste, I get 2-3 shots between every time he moves (3 shots about 50% of the time).
So based on this very limited testing, recovery time has value in turn based mode.
Maybe the speed stat only matters when determining how early you take your turn (i.e. if fighting 5 goblins, they all get to swing before you if their speed stat is higher).