Galaxy will reach 10 million... only to be adjusted down to 9 again.

Pretty much this.  I think with a Player's Choice line, Galaxy could outsell Mario 64 and Twilight Princess could outsell Ocarina of Time.

A DS Player's Choice line could be huge too.

I say brawl will reach 10m. Was gonna say SMG then remembered SMG2 was coming, which will probably cannibalise the sales of the original. However, if there is a players choice range then i say yes. It's funny but i did a thread about whether SMG would outsell halo and the general consensus was that it would. Looks like the majority were wrong...

If or when the price drops, I believe they have a chance to break 10 mil.

It will if Nintendo releases a player's choice line.

These two post summed up how Galaxy and Brawl could sell over 10 million units each. But for some reason, Nintendo has not come up with a player's choice list yet.

This.   But the way Nintendo is playing it these days it'll instead be:  HD Graphic SMG, SSBB for HD Wii in 2012

Brawl is pretty much a given to break 10 million anyway.

I think Nintendo don't make a player's choice line because it's simply not necessary. The games still sell at their original price point, if they drop the price on them that means more sales but less money. Nintendo are a company like any other and what they need/want is money. The raw sales numbers don't mean a thing compared to the actual profit.

If TP and Galaxy were rebranded, redistributed and $20-30 each, they'd probably 50-100k each monthly in the US alone.  Hell, they'd each probably push 300k+ each in December for the US alone.  Nevermind the sort of push it'd give other 2006/2007 Wii games (Excite Truck, Super Paper Mario, Mario Strikers Charged, Mario Party 8, Fire Emblem, Big Brain Academy, etc).

That's easy, Nintendo likes money more than sales