what is more popular silver or black face plates

I know it doesn't apply to all but silver has mid-fi vibes.

Silver, black faced gear is hard to see in a darkened room.

Leo Fender was a trend setter.  

I personally prefer black. I’ve noticed some companies (Parasound comes to mind) charge more for the same component in black. 

Black

The Rolling Stones had it right from the start!

I see silver face plates

and want to paint them black

no champagne or gold for me

it’s got to be flat black

i see my line of gear

and they’re all painted black

I returned the silverl amp

and exchanged it for black

changed my return address

so it never can come back

well you get the idea