I'm a middle school teacher who loves all things Disney. Whenever I need a pick me up, I head to the Happiest Place on Earth. No matter what, I always visit the Enchanted Tiki Room or on the Many Adventures of Winnie the Pooh.
Do NOT buy from places that aren't authorized to sell Disney tickets. My friend purchased tickets online from Disney the other day and it got flagged somehow. Anyway, they were stopped at the turnstiles and taken to City Hall. When they got there, security was waiting for them. It took over 2 hours to prove that the tickets were not frauds. I would hate to have your vacation start this way.
I have to agree that they could have had it more grown before opening. I mean, they had trees growing for some years off site in order to be transplanted in time. Yes it's picky, but that's what happens when we're there all the time.