Afraid of the Dark...Accent Wall

I'm toying with the idea of painting a dark accent wall
in my bedroom, but I can't seem to commit. I have
vaulted ceilings, and the obvious place to put said
accent would be on the wall with the bed. But
I admit, I'm scared. That would be one big dark
wall. I considered going lighter, so perhaps it
wouldn't be quite so dramatic, but then again, I
I guess I really want that wow factor in my mostly
neutral room.

I've read a few articles which talk about how
a dark wall will accent light furnishings and
accessories. Or if you have a great piece of
art you want to showcase, the accent wall
is a good option.

I do love the look of both of these rooms...

Sunset Magazine

Decor*Pad

I guess it comes down to the fact that it is just paint, and
if I don't like it, I can just paint over it.

decisions, decisions...

Any thoughts? What would you do?