Quick, check it out before they notice and correct it: link I knew DDR2 prices had fallen through, but jesus christ!
Typo aside, I didn't pay a whole lot more than that for my additional 8GB kit, and that's for the server-grade stuff with special heatsinks that you need for a mac pro. I've grown rather fond of ddr2... seems to have dropped in price faster and more consistently than any type of RAM before it (more than the usual technology pricing curve)
No. Not until payment is taken, they then decide to enter a contract of sale on the terms you have offered. Until then they do not have to go through with the sale.
Well it is SDRAM which is very rarely made anymore so i doubt it. If you compare prices of SDRAM v DDR v DDR2 you will see that the older the product the more expensive it is.
high-density sticks are always more expensive - usually one you hit 4GB/module or higher it starts to get nasty.