I think you guys are missing the mark on proper valuation. It's not "how much is 1 bitcoin worth," it's how much is Bitcoin worth? How much is the market cap worth? When you look at it like that, it could very well be over a trillion $. If that is the case, it is possible that sometime in the near future, which is very likely; 1 mBTC will be the new BTC. In other words, We will have to change how we view commonly used denominations.
Saying, "Oh, well.. geez $1 million for 1 bitcoin, that just doesn't seem possible," That's because you are looking at it all wrong. If Bitcoin becomes a standard alternative to operating in dollars for "Brick&mortar" as well as "Online businesses," You can be your a$$, you will see a half trillion, to trillion dollar market or more.
I can see 1 Satoshi being worth a penny, can't you ?