I guess miners like you like to wait a year+ to receive their orders, right?
Let's see, let's compare nothing to something, and then see which one is more valuable...
Of course not. Everyone wants their miners as soon as possible. I paid 1.6 BTC for a 5 GH/s BFL in April and I'll have it in August at the latest. 4 months != 1 year. Anyone ordering now will also have to wait about 3-4 months before they get their order.
Let's compare then smart arse.
AM
3.3 BTC per share
400,000 shares
0.03 BTC weekly dividend (extremely optimistic)
110 weeks = 770 days to recoup costs
5 Gh/s BFL
274 USD = 2.74 BTC @ 100 USD/BTC
0.018 BTC per day with network hash rate at 1000 Th/s, 153 days to recoup costs
0.0045 BTC per day with network hash rate at 4000 Th/s, 612 days to recoup costs
So, even if you did have to wait another year for your BFL miner to arrive, you'd still make far more profit from a BFL miner over an AM share. Face it, you need to go back to school and learn how to do basic maths.
If you can sell your AM share for more than 0 BTC after 770 days, then you have no argument. You can't know the price of AM in 770 days, but it likely won't be 0 BTC. Additionally, you can't know the future difficulty so why bother with your pointless simple math.
Why would you want to sell your shares if they're so great? Sure, you can sell your AM shares and then make an actual profit. You could have bought a new miner by that point if you went with BFL though and would be making even more profit.
The point of those examples was to show that even at stupidly high difficulty, which we probably won't see for a few years, BFL still offers better value. If you buy a BFL, you will recoup the costs quicker than you would if you bought an AM share, even if it did take them a year to ship it, which it wouldn't.