I'm getting Wrath in a week or two, for various reasons:
1) I want to see if Blizzard knows how to make a better xpac than the previous one.
2) See if lvl80 will be more exciting than it was to get to lvl70
3) Death Knights, seem interesting
4) To determine if i really ENJOY WoW.
I have a lvl70 Feral druid, but i think il'l never play him again if DK's are as good as people say they are..