I might upgrade to one in May from my Quad 2.66ghz, but really its not necessary since the majority of apps can't take advantage of all that power [cores or RAM] as of yet, since none are optimized for it except a few Apple apps. The majority of people that use Apple workstations such as these are creative professionals like myself, that use Photoshop, Aperture, Logic and apps of that nature; Photoshop being the main. Adobe has yet to optimize PS to take advantage of either the 64 bit architecture of the OS or for multiple cores past 2 [I could be wrong on that one]. But yea I think I'mma sell mine in the summer and upgrade when the RAM is more affordable… I dunno for sure gonna wait for the benchmarks to see if its worth all the extra $$$.