It's not just about emotions. It's the next frontier. Don't you want us to get there first? It's also a great investment, it creates jobs and develops technological breakthroughs that benefit everyone.
> it creates jobs and develops technological breakthroughs that benefit everyone.
That's a testable statement. Though the more interesting statement would be: It creates more jobs than other things we could do with the many, and develops more beneficial technology.
(My guess is that those stronger version aren't true.)