I agree; I would say the overwhelming majority of users utilize their MBP for performance. With that said, a large amount of buyers (including myself) considered computer styling as important. After you buy it however, you then get to experience first hand the magic of Mac and only then can you appreciate its capability by experiencing it first hand.
As far as saving money, I agree 100%. If anything, they make money as having a reliable and modern laptop is hugely important for success in both academia and the professional world. I use my personal MBP for all of my office work and it's ability to help me make the best documents has made me money. If it broke or was stolen today, I would be at Apple at 9AM first thing tomorrow to buy another.
why does your mac save money? the tasks can also be accomplished by an ordinary pc. and macs are not more durable. you can just buy three pcs instead of one mac and
i think the greatest advantage is still the build quality and comfort.