Comment by TylerE

THere is little POINT in putting a man on the moon after you've done it.

We have plenty of moon rock to run experiments on.

Any micro/low gravity experiment can be run cheaper in LEO.

There aren't any valuable resources there to exploit.

It's a bit like asking why we don't build a habitat on the bottom of the Marians Trench - we COULD, but why WOUDL we?