my problem with more and more cores on a processor is simply this: most software is still single-threaded. without a lot of multithreaded apps out there, adding more and more cores to a CPU isn't going to add a lot of performance. IMHO, the only great thing about the hex-core is the insane amount of L2 and L3 cache. with that much cache on hand, those processors are going to be faster than the current quad-cores.
See the struggle of the faithless lot as they negate their time
How low to sink to the depths of their frame of mind