Hmm, while the ending overall I found more than good enough, in fact better than I expected, I get what you're saying about it going really fast from Vault 87 on...when I realized halfway through the final mission that that was it, I was kind of in shock. :lol Also, I tried doing the same thing you did at the end, and I was pretty pissed too; seriously, thats totally how I expected to do it but it didn't let me, really sucked since I never ran into anything else that took me out of it like that the whole game (a feat all by itself), and really it was such an obvious choice to give players.