Imaro said:Emphasis Mine...
I gotta disagree with this analogy. A sorcerer still runs out of all his spells and must rest at a certain point. In a per-encounter model this never happens.
Emphasis Mine...
Never? First off, not every ability is per-encounter in 4E. Some are daily. PCs will also run out of potions, scrolls, and similar charged items eventually as well.
Secondly, I said similar. I did not say identical. I also suspect that 4E PCs will eventually have to rest up as well, especially if they are about to face the main event BBEG later in the day and no longer have their daily abilities or want to prepare certain abilities or items that take time to prep. I doubt the game will have zero of these types of elements.