As always, it really boils down to what you want from your computer.
If you want good, clean, simple design, Apple does have style… though since Apple is so popular, it kind of makes you blend in; ubiquity is bland. I tend to favor a more industrial look, so Apple doesn’t suit my tastes there.
If you want good performance, well, Macs are adequate in processing, but somewhat deficient in graphics compared to a PC of equivalent cost, and are not upgradable. That point right there is what kills Macs for me, but for those to whom it doesn’t matter, well, it doesn’t matter.
If you want customer service, then you should buy everything from Apple. There is no denying that this is one area where nobody can compete with Apple. As someone who has never needed customer service, I don’t find this to be a selling point, but others may. The customer support is the only thing I can see justifying the prices they want.
If you want reliability, last I checked Apple was 4th in Laptop reliability. That is why I went Toshiba.
If you want gaming, then Apple loses big time. While a few of them have GPUs comparable to a mid-range video card, there is no MB, MB Pro, or iMac that can even hold a candle to a PC that could be built for less than half the price. As a gamer, this is a HUGE strike against them in my book, but a non-issue for many people.
If you want value, then you first have to figure out what the thing is really worth to you. Most of the things that many Apple fans use to justify the high prices are things I would not pay for, either because they are not important to me, or because I have the knowledge of how/where to make/get something that will do the same thing for less/free. For instance, the resistance to viruses is because OS X is basically Linux under the hood. The OS X interface? the aforementioned Mac4Lin will get you that.
I believe that @Aqua is correct with the statement, ”... my computer does everything I need it to.” That is the most important consideration. For me, a Mac makes no sense, especially not if I am the one paying for it. It doesn’t suit my tastes, or meet my needs. Your mileage may vary.