Wait, people care about a measly trillion dollars worth of minerals, particularly iron, gold, nickel, and lithium?
http://miningasteroids.com/
http://news.bbc.co.uk/2/hi/science/nature/401227.stm
Why is it a big deal if it's $1,000,000,000 in Afghanistan... but it isn't a big deal if it's $20,000,000,000 in a single asteroid in space, exactly?
I'm sorry, maybe I'm just missing something here... I mean sure, it'll be comparitively easier to get the minerals we just found are near the surface there than, I dunno... send some asshole to the moon or whatnot... but it isn't really that much mineral wealth in the long term.
Are we waiting til we use everything up, and THEN we're going to head outwards?