Re: Profit margin
Samsung are far too late to the table with the better looking Alpha and note 4 (and they're far too expensive in the UK),
I read an article that predicted based on sales figures / prices of the notes 4, 3 and 2 and the iPhone 6 plus that they expect that Samsung will knock around 30% off the price by the end of January.
Their basis was they always tend to discount them around 6 months after launch and the fact that the iPhone 6 plus is killing the note 4 even in Korea will just expedite this process. I'm holding out for that hope