Well said. Let people do what they want. This is ambitious for sure, and risky, but that's nothing new to mankind.
I say "more power to them". I'm envious.
I hate NYC but one day drove there and visited just the world trade center and took my 13 year old daughter to the roof restaurant for dinner, we watched the sun set over the city from up there and then drove home. We will always remember that day, and evening, the sun setting over the city, the lights coming on.