Corsair TWINX2048-4400 PRO
 

Does anyone really need 2GB though? Our answer is yes. Even if your
system is fine at 1GB, I can tell you that Microsoft will probably say
something like "1GB is the recommended amount of ram a user needs for
Vista". Using our rule, 1GB will probably be the minimum for Vista, and
truth be told, we feel 1GB is the minimum anybody should have in their
system now.

http://www.viperlair.com/reviews/mem.../DDR1/4400pro/

$400 for 2GB of ram when $300 can get you a budget system, and $150 PC is the targeted price to get into India and China market where investors see the growth in coming years. Vista may need 1GB of ram, 4GB if you so desire doesn't mean people are rushing into buying a $2,000 PC. Many forture 100 companies are still using W98se.