Ok, forget all the "FTL is impossible!!!' naysayers and just focus on this issue:

We have functional star travel, we find other worlds out there ripe for the taking.

Now, why would we go to the stars?

No, it is a serious question. Why would most people go to the stars, to new worlds?

We all know about the "noble" reasons, like exploration, the need to know, the desire to see what's over the horizon, etc.

There's the profit angle, of course. "Maybe I'll find something that makes me rich out there!"

I was thinking about less noble reasons, too.

Maybe fear would be a reason to make us go out there. Maybe people get worried that there might be "someone out there" and if we don't expand and find him he'll find us first. Maybe some people will say we need to spread out so no one attack can get us all.

How about bigotry, a time honored human tradition? Maybe some people would like to find a nice new planet, settle it with their own kind and hang a giant "No (whatevers) allowed" sign over it.

One argument about speading out is overpopulation. I don't think that's a valid one, has even if millions of people were to emigrate it wouldn't really make that big a dent in earth's population, unless we had mass "forced deportations" like some dystopic SF has predicted.

So why do you think we'd go to the stars? Are there reasons I'm missing? Or is it more likely that there'd be almost as many reasons for going to the stars as people going to the stars?