Yes I also miss the keyboards from the previous generations. Getting a keyboard you like is more important on laptops because you can't change them like you do on desktops and if you keep your laptop for several years then this adds to the problem.The only thing I prefer off the old non-unibodies is the MBP's keyboard. It was an absolute joy to type on compared to the newer unibodies.
Back to the original topic, the looks of a computer is in the eye of the beholder. The previous generation MBP before unibodies were nice looking but I do like the look of the unibodies. As long as it's not ugly looking to me then I really don't care too much. I prefer to use my computer rather than sit there admiring it all day.
If a person really feels this strongly about the looks of their computers then they should have planned ahead by buying the last generation of the model when new ones are announced and make sure to buy the highest end version so it will last you awhile...well until you ditch it for the next prettiest thing that comes out. This is like the car industry. When a redesign is announced it gives people time to decide whether they want the new one or the previous generation. Also like the car industry there is a time period after the discontinuation of the previous generation that you can get used versions, but like the old saying goes you snooze you lose.