[zhoutong]

Also have to consider the inferior CPU performance:

1 ECU is equivalent to 1.0 GHz - 1.2 GHz Xeon CPU in 2007. And the number of cores is usually small.

[dasrecht]

Basically this is true and this leads to the conclusion that instance types like (micro, small and medium) are quite underpowered compared to "today's" usage patterns right?