Specifically here, in this little corner of heaven, the acres really can't be used for anything else unless you can figure out a way to wring more water out of the Colorado River.
But not even remotely implying that we shouldn't pursue the space based option.
Oh i get your point. That's making good use of available resources and it's higly commendable.
I hope to visit your little corner of heaven (Arizona) someday too :)