Yeah, the Chinese spend all kinds of money building ghost cities too. Just because they're willing to do it doesn't mean we should do it too.
As to a missile platform, why would they set up a location for a missile base far enough away that we'd have days to launch a retaliatory strike before their missiles got here? It doesn't make any sense.
http://www.comhaha.com/blog/628809-china-plans-to-build-moon-bases-in-2049/