Well the neighbor came back to the "fold" with the release of WotLK. I gotta say Blizzard really out did themselves this time. The DK's are awesome, and the new continent is very, very well done.
They simplified tailoring (my Mage is a tailor) to where the mats don't cost 3-10X what the item is worth on the AH.
Warriors got a much needed boost. Mines only leveled up to 71 but I took out a 75 Druid the other day.........twice. Owned his ass!
They made skinning and mining give your toon boosts. Mining gives "toughness" (health +300 so far) and skinning gives agil.
DK's are badass. Kinda a cross between a Mage/Pally/Lock/Warr. Really fun to play.
One of the new areas is called Grizzly Hills. The graphics are well done and remind me of the forests around where I live. As I said above, damn they did a good job.
New instances, new factions, new loots, new harvesting. WoW life is good.