It does not seem like you know what you are talking about.
The beautiful design is the reason they use laptop parts, so it can be the size it is. And by the way, even if laptop sales are stronger than ever, those components are still pricier than desktop ones.
Now the last part of your comment is even worst than the rest. Just look at the computers and compare them. All this 'Apple sucks', 'Apple sells overpriced hardware', etc. comments are so out of line. Look at any other computer, from any manufacturer that has a 'nice' design and similar parts, and they are even pricier than Macs. If you get Dell cheapo boxes that fit almost any configuration, etc. you cannot remotely expect Apple to bring the products they bring to market, charging what Dell and others charge for these brand-name clones.
BTW, I am not saying Macs are cheap. I know Apple makes money. That is why they are a business. But I think they are worth the price given the attention to detail Apple has in their products, software and hardware. And before you tell me about the 'flops', i know about them and still seems to me that Apple, in terms of bringing great products to market, has an impressive track record, despite the times they have overlooked at something (They are humans after all).