Of course, the darker shade of black makes the MacBook less susceptible to harmful UV-based damage to the hard drive and GPU. In particular, the black helps shield the GPU from UV-A rays which have been known to short circuit the internal circuitry of the GPU. Studies have shown that black is roughly 55% more effective as a colour for protecting a plastic-shrouded device, compared with white. This is all very well in theory, but these figures translate to roughly 13% more longevity for the average user who may take their MacBook outside for half an hour a day, four days a week. Naturally, results vary from continent to continent, but in Australia where the UV rays are at their strongest due to the hole in the ozone layer, this can also attribute to LCD longevity as the white reflects the UV-A rays right back at the screen. From an economic standpoint, the solid black MacBook could last anywhere up to five or six months longer in a place like Australia, compared with the white equivalent. As such, this surcharge of US$200 (less the added cost of upgrading the white MacBook's hard drive), must be weighed up against the prospects of a longer lifespan which will be compounded by better resale values, since everyone knows these simple facts about UV-A rays and their effects. Anyway, if you've managed to get this far through my post without contorting from excess sarcasm, then go ahead, buy the black MacBook. You'll thank me later, when the GPU remains perfectly intact at least two weeks longer than the GPU of a similarly-aged white MacBook.