Some people seem to think so.
Have a look at the Back to the Moon page for some interesting discussions. Personally, I don't think so. There are just too many other economic issues that seem to require attention, and I don't think I have heard a single compelling argument for going there that can be explained to someone about to loose their job as a result of downsizing. The 1960's were a unique time in American history. Our economy was expanding greatly, we had NO national debt, and the various entitlement programs had not yet begun to compete with other expenses in our society.