Yep. Just like there is only 2 Nvidia manufacturers selling the 3GB 580, while all the others are selling the POS 580 with only 1.5Gb version. And those 2 are in Europe, so you have to import a Palit or a Gainward since they are never in stock in North America.
What's the difference?
What people in the USA will do if they have a problem with a Palit card bought in England?
Newegg isn't even listing the 3GB Palit card. But they are listing 6 6990's of which only TWO are wannting overclocking.
There's a difference between finding a special edition card with more VRAM in another country and importing it versus buying a 6990 in AMERICA and not being able to warranty your card if you so much as THINK of touching that slider. Aside from Sapphire and XFX.