Been 10 times, although I'm not sure that really qualifies me for a veteran. Nonetheless, I have never been on:
*Monsters Inc. Laugh Floor
*Journey into Imagination
Mission: Space
Circle of Life
*Living with the Land
Honey I Shrunk the Audience
*Journey into Imagination with Figment!
Ellen's Energy Adventure
Any of the older Epcot "classics" in the pavillions (i.e. Captain EO or that show with the singing veggies)
*Maelstrom
*Gran Fiesta Tour
American Idol Experience
Beauty and the Beast Live!
Journey into Narnia
One Man's Dream
Playhouse Disney Live!
Sounds Dangerous
*Toy Story Midway Mania
The Boneyard
*Dinosaur
Expedition Everest
Festival of the Lion King
Finding Nemo: The Musical
*It's Tough to Be a Bug
*Kali River Rapids
* Things I actually want to see/ride.