I'm surprised by the suggestions of spending 2 days at Epcot. I've only been there once and I wasn't that enthralled by it -- did I miss something?

Do kids like the World Showcase, too?
My kids have always LOVED Epcot. Here are some things they have loved doing over the years. We find that even after 3 full days at Epcot, we don't see everything we wanted to see.
1. Masks at Kidcot stations
2. Passports - someone from each country signs an entry in book.
3. Kim Possible missions
4. Playing games in Innoventions
5. Turtle Talk with Crush
6. The new Living see's Nemo ride
7. The living Seas
8. Test Track - My son would make us let him ride single rider the day he was old enough to do it himself, lol
9. Shopping at the WS countries!
10. Finding the Characters that are scattered around WS (Pooh & Friends, Beuty and the Beast, Snow White, Mary Poppins, Alice in Wonderland, Jasmine & Aladdin, Mulan & Mushu (not sure if Mushu is still there).
I could go on and on! There are so many things to see and do there! My kids always beg for more time at Epcot.