I use this method of saving on home electronics. Home electronics depreciate at a stunning rate, and by buying "behind the curve" you can find great deals on things you wanted a year ago.

This is why I still enjoy, and buy games for, my (refurbished) PlayStation 2 (actually, I still play games on my SNES too). My workstation was dated, so I built a new machine with parts just below top-of-the-line (Core2Quad rather than i7, 600 GB instead of 1.5 TB hard drives, for example).

The advice in the article about new cars is valid; new cars depreciate as soon as you drive them off the lot, because then they're "used." You might get a nice warranty package with it, but you can get extended warranties for used cars from certain dealerships.