Desdichado
Hero
That isn't the only purpose of rules, though. One of the reasons I like 3e (compared to older versions of D&D and 4e both, although for different reasons) is that the rules also provide a fair amount of character definition. In the older versions of D&D (at least until "2.5" with full kits and whatnot) there weren't many tools within the ruleset to define your character, and with 4e, it seems to me that most of the definition is around combat... which isn't really character defining, actually.Rules don't exist to facilitate "pretending to be a magical elf". Rules exist to facilitate conflict resolution -- which is to say, when you want your pretend magical elf to do something which conflicts with the goals and aspirations of my pretend magical goblin tribe.
In 3e in particular, there were a lot of weird things you could do with skills and feats you took, levels of different classes here and there, and whatnot, that really allowed you to define characters with quite a bit of granularity, and with quite a bit flexibility too, and a lot of those were things about your character that didn't have anything to do with combat (one of the most memorable characters in a recent game I ran made sure that he maxed out his Craft (Needlepoint) all the time because he was a rake and a womanizer and keeping his lace up to snuff was an important character quirk... to give one off-hand example.)
In fact, for me personally, that's much more important than conflict and challenge resolution, where I'm more prone to handwave a GM interpretation rather than rigorously apply all the correct rules to any given situation.