Well, I obviously didn't mean hardware meant for specific applications where ECC would do notably more harm than good must use ECC anyway nor that non-ECC memory should not be available to those who consciously want it. Perhaps graphics rendering farms should be built with non-ECC RAM or with both kinds used together (ECC for the system code and non-ECC for the graphical data).

As for me I'm just annoyed by the fact I have never seen a laptop that supports ECC (as for now it seems there actually are a couple of models e.g. ThinkPad P70). I personally don't really care about the RAM bandwidth, I'm still using DDR2 anyway, but I would love to use ECC.