I see from your profile that you are 44 years old. Nobody knows for sure,except for the developer, what the ending build-out date will be. No one knows, where we will be in twenty or so years from now. Hopefully, above the grass.
I am sure you find a pre-owned home that might be slightly /barely used assuming that no new homes are being built when you are able to retire and or invest in a property. I agree, it's nice to have that option, but you may change your mind and think a pre-owned is more suitable to your needs. GOD knows that many people bought something different from what they perceived or thought, they wanted.
Relax. This place is beautiful no matter where you live and I'm sure you will be happy.
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).