KeithDust, it sounds like rationalization. If you can add 64 bitness for next to nothing, why not. Applications not apparent today will develop for the chip. If nothing else, you can say why buy a Celeron/P4 when you can get an Athlon and get 64 bits for free.
Definitely a strong marketing statement. Wouldn't you get the Ford instead of the Chevy if Ford gave you a free V8 upgrade?
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