I'm only writing this entry so that I can will the Warcraft Server Gods to bring the realms up, so ... hopefully it will be a short entry ;)
Heroics in World of Warcraft
Heroics dungeons were introduced with Burning Crusade as a way to keep the general populace entertained for longer before having to commit to a "raiding guild experience" that went beyond a PUG in the Looking For Group tool.
Heroics only exist in the Burning Crusade dungeons (but will also exist in the Wrath of the Lich King expansion) and are dungeons whose difficulty are significantly higher than the regular version of the same dungeons. That is, all the dungeons from Hellfire Ramparts clear up to Steamvaults, Arcatraz and the many others players can traverse through on their trek to 70... have a Heroic mode that can be run once a player is 70 and adequately geared.
The Purposes Of Heroic Dungeons
Heroic Dungeons serve many purposes on the game.
If you're a casual player who has no aspiration to ever see the inside of a 10-man-raid during the same expansion it was released in, Heroics offer a challenging environment that requires the same level of commitment and scheduling as a regular 5-man PUG, and offers a continuation of gearing-up that doesn't require commitment to other players on a continuing basis.
If you're interested in getting into Raiding, Heroics is a training ground for the skills required to be a good raiding contributor to the 10 and 25-man raids. Plus, the gearing from Heroics Badge rewards and Heroics drops (including otherwise-expensive Gems) is on-par with what drops in the 10-man raid instances - thus, gearing up through Heroics makes a would-be raider even MORE viable on a raiding team.
The Heroics Inside Track
I've noticed in my own gearing-up and PUG Heroicking (and social wheel greasing) and reputation grinding that the better geared I have gotten, the more people whisper ME to get involved in things - even when I'm not in their guild, and, in fact, my guild is a "nobody" guild when it comes to Heroics and beyond.
I've now got Heroics-geared Tanks and Healers who ask ME to join their group to handle DPS and Crowd Control. Folks who rank decently on the WoWJutsu.com ranking site for our realm. And let me tell you... partial PUGs where you know the Tank and/or Healer are solid make Heroics SO MUCH MORE FUN!
Why Do People Skip Heroics?
I've noticed something very interesting now that I've moved into this "gearing/geared up for Heroics" phase of my World of Warcraft existence - while Heroics gear is on-par with Karazhan gear (I'm going to have to find some links to point to here, I'll come back and edit this later), there are those would-be raiders who seem to want to "skip over" Heroics and jump right from "Quest-and-Dungeon-Blues 67+" into Karazhan in order to get their gear upgrades there.
I realize that PUG Heroics are a crapshoot in terms of being able to make it past the first boss with the continuing waves of barely-geared players dipping their toes into the Heroics water, but isn't that why we build a Friends list?
Oh, and BTW, if you're in a guild with a bunch of Friends, this question is much clearer to me. I guess I'm asking mainly about the people who apply as complete strangers to join a raiding guild without having an inside reference asking them to join.
Thoughts welcome!
Woot! Game's up...