How is it a joke? 99% of the population, including most of us don't use the bandwidth that DDR400 provides.
My point is that DDR3 doesn't offer that much of a jump in bandwidth as compared to DDR2. It does offer more. But DDR3 clock at 1333MHz only offers about the same bandwidth (depending on the chipset) as DDR2 clocked at 1066. But DDR3 cost a hole lot more.
It’s kind of like what Intel did with the Pentium 4. Which was just a modified Pentium 3 that was slower clock or clock (yes the Pentium 4 was slower clock for clock than the Pentium 3) but could run at much higher clock speeds.
And we all now how much the Pentium 4 sucked.