Yes. We have 1 of the 7 great giga-coasters here and I rode it countless times.It's not the same. I don't ride because it scares me, I do it cause I like how it feels.
The adrenaline and shit you get from a roller coaster is a byproduct of fear. If you were fearless that kind of excitement would be boring.
in this thread: explaining emotions to an autist