In reply to Sariel:
Depends completely on your personal vanity and piss-taking threshold. I get ribbed for wearing khaki, brown and bin-bag black but being a grotty colour is often why stuff is on discount in the first place! For a little more I'd go for what's pretty - but for any more than that, I'd rather spend money on something else.
The fact you are asking suggests it's gonna bother you, and you're after justification! So, if you can afford it get what makes you happy (and tell yourself you will be easier to find if fall off something) but if you are going to forever feel guilty for being vain then get the black. simples.
Disclaimer: I am from Yorkshire.