Space Trade - Silly question or.... (Little Upsilon)

Don't we already have space trade already?

It's called the direct trading and the cash market.

There are only three products for sale:

1) Gold Coin
2) Game Money
3) Humans (in 1 million size lots)

The makers of simcountry are adding a whole bunch of new stuff that could have been done so much easier just by adding products to the direct market.

What would be the fun of that? I like the idea of renting a space station to my fellow cosmonauts.