Except in very bright sunlight, no one will ever know. Also you will only use them when cooler, I assume? So who cares, black cheaper to buy and also easier to sell when you trade bikes.
Well I think gpopvet is doing the blk & wht on his, which should be something special.
I actually leave mine on year round and now that I see the color matched set on the bike I am very happy I went that route.. I do think the plain black would have stood out like a sore thumb.
Now me personally the selling point you made is not an issue for me as this is a drop in the bucket in the grand scheme. I do not think about resale mostly because I tend to hold onto my bike for many years and I generally try to get them just how I want them in the first year or so, that way I can have the most enjoyment out of the bike, more bang for the buck so to speak. Maybe bang for the buck is not the right phrase but I think you know what I mean.