[mediax]

I have a 505 in silver, and have no problems with the colour. It certainly doesn't detract from my reading experience (although that's a personal judgement).

That said, I'm looking at getting a 650 in black - solely because I think the 650 looks better in black (again, a personal judgement). But if the silver (or red, come to that) were cheaper than the black, or the black wasn't available when I come to buy - guess what?

I suppose what I'm saying is, get whichever appeals to you - your liking your own device is more important than someone else finding its colour distracting (or not). I find that the only time I really even notice the colour is when I'm not reading.