21" MBP? Do any mainstream companies make a laptop bigger than 18"? I know that Dell made a 21" or 21" a few years ago, but it was a flop.
HP make a multi drive 19" model that at the time was the only laptop that actually displayed 16+million colors. All others just made us think that they did, Macs included. But as the 17" models tend to have smaller sales, the 19"+ models were even smaller. Just like the probably never to be made mid priced Mac tower some of us like me will always wish.
But Apple has shown that they do not want a numeric keypad on any of their computers. I'm surprised that they still make one wired extended keyboard. They sell as many of their iMacs without a numeric keypad as they can. Some of us still need to use numbers to make a living.
It's hard for me to use my 17" laptop after using my Mac Pro with 3 30" displays as well as a 28" & 47" models. Bigger laptops means we can see more at one time plus have more room inside to be able to do more things with our Macs. My only computers that I have ever purchased that will boot natively into Windows are my Intel Macs. Mac User since 1984.