<< You will be able to buy a Dell with DDR the day Intel releases it. Thats the way it normally goes anyway. >>
Yep, that's normally the case, but this time I think it will be different with the 845 DDR chipset release. Reason being, the major mobo manufacturers are already pumping out mobos based on the "new" DDR chipset, to such a great extent that many of them are either discontinuing production of 845 (normal) SDRAM chipset mobos, or, beginning with this month of December, their production of DDR vs. SDRAM mobos will be very heavily weighted towards the new DDR-based boards. Word is that mobos are already available in Taiwan for instance. So my bet is that once Intel "officially" releases it, there is going to be a huge flood of mobos with P4 & DDR support. Add in the usual buildahead to cover for the yearly downtime in observance of the Chinese New Year, and by the first part of January, you'll be seeing P4 DDR mobos en masse.
Not only is this helping to cause the DDR price spike (I would not be waiting for prices on DDR to fall again), but most analysts are viewing the pending release of DDR mobos for P4 as bad news for AMD. On the one hand I agree, as this is a significant pull-ahead for Intel, but overall I don't think it is going to change the 80/20 market penetration one single bit. The companies that will really be hit by this are those who may only produce SDRAM, or who have big stockpiles of regular old SDRAM in inventory. Normal SDRAM is going the way of the Dodo bird ...
<< The main reason to want DDR is to save money. >>
This is a tired arguement at best, when RDRAM costs at most $25-40 more for a 256MB system. Compared to the overall system cost, that $25-40 extra is totally insignificant, and for some it is worth the small extra cost. My only hesitation if I were contemplating going with RDRAM at this point is whether or not