I disagree: most ordinary folks (meaning, those not obsessed with *having to have* the latest processor name inside of what they're typing on) can address all of their needs with pre dual core chips in a laptop, provided it has sufficient ram (say, upwards of 1.5 gigs for Windows XP). Thats probably light years in the past for you, and it is definatley pre- dual core chips. Intel's mantra about chips was relevant in that period of history, but at this stage, a shift from one flavor to the next is by hundred times less significant in terms of real usage performance boost than it was when, say, 3rd Pentium was replaced with 4th. AT some point, it just started to become moot, and the trend continues. It is becoming less noticeable or significant, for many reasons. Out of all of the macs that I've owned in the past 4 years, I hardly see any significant performance difference, with one exception: ability to play/edit HD footage from a DSLR. My former 2.4? Santa Rosa MBP with ATI with 128 Video ram would choke on it, while the current MBA plays it very nicely. MBA has twice video ram. Also, SSD makes a quicker startup, other than that I cant see any reason for owners of what you call "old" chips seeking to upgrade: none. Should I have opted for half a gig MBP three years ago, I would probably still have it: matte screens were default, and I liked the silver lighted keyboards much better.