yintsinmerite - I agree. Did it a few years ago and was great fun plus the views on the way out are fantastic.
Sat next to the "cool blonde" - blonde, shorts, tanned legs and sunglasses. Didn't say a word until about 15 mins after the climb when she turned to me and said shakily "You know - I don't like flying...and I really don't like flying out of there!".
Mind you staying at what was the Hilton hotel and watching the appproaching a/c was quite fun too as they seem to come in betwene the buildings (most likely not, but it seems like it)