Two word: AppleCare warrantee.
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Think of it this way.
You can get a cheap-PC, and save some cash right now. It's not going to be anything new and different... it's going to be the exact same thing you've had in the past or the same as what you have right now. In terms of hardware, if you find a PC that matches the top-of-the-line components that Macs use, you'll see the cost of that PC will be closer to the cost of the Mac. So for starters, if you want a good computer, at least match what the Mac has to offer with the tech specs.
However, hardware is not the key difference between a Mac and a PC, it's just one of the differences. That's where there's going to be a bit of a transition for you, just as it’s a different OS. But it's not so difficult and people make the switch all the time. And just in the case it takes a little more time, you can put Windows on the Mac to make the transition easier for you.
You'll save yourself a lot of time and money with your Mac. Not to mention a computer that looks as good as it works. Can you say that about your PC?
Well first of all, Applecare warranty costs about $300 extra which puts the price even higher hence backing up my comment. And Mac's do not use top of the line components, they use the same as PC components. The highest the Macbook Aluminum processor they use I believe is the P8600 whereas in my M1330 that is almost 2 years old uses a T9300 which has a larger cache and is faster running on the same Penryn core.
If you haven opened up a Macbook or two before you will see they use the same stuff as PC's. The DVD burner in my brand new Macbook is the EXACT same model and make as my DVD burner in my M1330. The hard drive in my M1330 is both larger and faster than the Macbook's and everyone knows that Apple does not make their own harddrives but just buys it from other companies like everyone else. I have a 120GB hitachi in my Macbook and I prefer my M1330 Western Digital drive much better due to speed and noise. And the screen in my M1330 is worlds better than the one used in the Macbook, not to mention much thinner. The panel used in the M1330 is manufacturered by Toshiba, I am not so sure what is used in the Mac but I am sure either AUO or some other terrible manufacturer.
And to top things off. Dell offers Complete Care warranty for about the same price as Applecare but they offer COMPLETE accidental warranty coverage and will come to your house to fix the laptop resulting in no downtime.
My M1330 cost about $900 whereas the Macbook costs $999. The M1330 is MUCH MUCH higher specced than the Macbook and is lighter and faster and better built.
I would like to see how Apple Macbooks are made with different hardware than PCs? The P7350 in the Macbook can be found in any other laptop and the 9400m chipset can be found in the Studio XPS 13 right now and they actually offer Hybrid SLI which the Macbook Pros can't even do even though they have the hardware but Apple probably limited it.
If you are wondering here are my M1330 specs:
T9300 2.5Ghz Core 2 Duo, 4GB ram, Wifi-N, DVD Burner, LED backlit LCD display, 8400M GS 256MB DDR3, 250GB HD, bluetooth. 3.95lbs