Hi Bowser
(Glad to read your posts:)

If there's no life, nor ever was liquid water....the science rationale
would not compare as favorably, relative to the Moon.

So, if Terraforming becomes the reason, then there are several questions:
How can the atmosphere, created through terraformation, remain on Mars, knowing its mass is too weak and the Sun is getting hotter?
And besides, Phobos is getting closer to Mars and in several million years, it will become a ring around Mars, much sooner than it will take our own planet to loose its liquid water.
And inhabiting a planet (the only other world besides Earth?) with a very different gravity...I don't think so.
Mars is the only other world "more or less" like ours, but what will the future generations think of the "more or less" expression?

Unfortunately (or, anyway, that's the way it is), there are no twin planets like ours....Hmm, but yes, there's one called Venus! But Venus is too hot and somehow too hot is less attractive than too cold.

We might change our mind about Venus, in the future!

But the Moon afficionados are wondering about Mars, for the time being.

Raoul