No share trading shows you know nothing of what you are talking about. You can trade bets on prediction markets, treasury bonds can be brought back, people at even trading preorder positions especially for Avalon.
It might appeal to people (and issuers) who have no business trading, but this dramatically limits the liquidity (to 0) and reduces options like selling now and getting upfront returns.
Your last answer is the worst you can give. Go work out the difficulty after BFL and Avalon and ASICMINER fully ships, add 10x the amount of people who aren't preordering, and you are forgetting your order is last on the line.
This would actually be interesting if you have a very early mini rig preorder, but now it's a joke.
I think the real joke is right here:
https://bitcointalk.org/index.php?topic=146319.0