That makes sense...  So if I understand correctly they'd be choosing int (+crit/ +mana) over spell damage, right?  Would this normally be a better way to go than +damage because not only do you have the +crit to increase damage but also more mana?  I suppose it would depend on whether you wanted to have more damage/ longevity against long boss fights or pvp fights and trash/ grinding which are normally shorter in duration...

Am I even close?  I'm not very good at this sort of thing.