Okay, I hate to be negative-nancy...
I am not afraid of heighs. Doesn't bother me at all - elevators, ToT, whatever, I'm fine with it.
I did *NOT* like Soarin'. You are sitting in a ski-lift style seat, legs hanging, with nothing but a seat belt. I felt like I was sliding out the whole time.
So my fear wasn't about the height itself - that wasn't an issue, it was not feeling secure while I was up there. I really wanted to use the "kiddie" strap (that goes in between your legs and attaches to the seatbelt) but it doesn't fit adults (at least it didn't me).
Now, my experience seems kind of unique - I was on it with some 70 year old women that loved it. However, I just have no idea how that ride is considered safe, as someone could easily slide under the seatbelt. I'm sure it's been tested, etc. - but logically it just does not make sense.
I will not be riding again, and it's a shame - I really would have enjoyed it had I felt secure in the seat. I felt better when it tipped back, but the times when it tipped forward I really did feel myself slide a bit.
N.E.D.