[javert]

Knowing nothing about resistors, though, 2k8 intuitively means 2008. So I like this way of doing it.

[ZoF]

Really? Because I would prefer "2008" to "2k8"... It's literally one more character...

[javert]

For written communication, yes. For verbal communication, the 2000s can be a bit burdensome to pronounce.