randomkid :
Still missing my point. The issue is whether someone who buys an X58 will be happy staring at an empty RAM slot where the 3rd stick should be. I bet he will be itching to buy one ( if he ever came to the decision to buy 2 sticks in the beginning ) irregardless whether he is happy or not about the performance.
So eventually, if not immediate, the RAM for i7 930 system will cost more than that for the AMD ( not to mention the motherboard ).
If he an enthusiast like us, maybe. although were a small nich in the computer world that wants to have the best or the have the fullest out of the system we own.
So maybe you'll itch to fill the 3rd slot, but not everyone will. Most people will fill it when they need it.
As for overall cost (short and long term), it can be view both ways.
Yes your point is valid although the other way it can be view, What if far down the road someone needs more the 16GB of ram?
Most motherboards can only hold 16GB of memory and the max Standardize ddr3 ram 4 GB. (there is 8Gb ram sticks but they cost big $$$)
So If you need more then 16 GB in the future, you'll need to upgrade the platform which will probably be with ddr4 ram (or whatever the name of the next set of ram is). As with new ram, you'll need a new motherboard and cpu that can use them. Bring in up the cost.
With an x58 motherboard, all i would need is 6 4GB ddr3 sticks and i have 24GB.
So it depends on how far/short in the future your looking into.
Although that going to be a long while and no one need more than 6gb (unless your using a program that need that much memory.)