Fact is, people used to be able to solo them.
Still can, as long as you can run two clients without lag.
People always moan about the Economy, without knowing anything about it.
You NEED some items to be hard to get. You need things to go up in price, not just down.
Once you make things harder to get, you drive up the price for that item.
I'm not sure why it doesn't sink in on alot of people, that this is good for the overall economy.
This in turn, increases the amount of money that people will get from selling these items.
Now best of all, This "profit" they make off the items, will 90% of the time, be going into the money sink, that is the Train.
That, is economy. Money going in, and money going out. Does it work out best for you always? Of course not.