Yeah, it's the length of the ascent coupled with the altitude you reached that is amazing--really, a huge ride.
By the way, khg, I think we may have met! My husband read your blog report on this ride (I TOLD you it was really interesting!) and said, "Hey! That's Ian B.! Don't you remember--he sat next to us at the 2011 post-PBP dinner and was telling lots of funny stories!" And I did remember. Weren't you also there?
"My predominant feeling is one of gratitude. I have loved and been loved;I have been given much and I have given something in return...Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and an adventure." O. Sacks