For $100...na. No. Worth pondering for a second, but really not worth it if it is in the center of the screen and a greyish color. Grey is bad cause you will see it in most backgrounds.
I have a VP201 with a dead pixel, and I would have exchanged it, but they are such hassles to return (most places I know only have 1 or 2 in stock) so I decided to just keep it. However, this is mainly because (a) the dead pixel is in the upper right corner, near where the minimize window button is -- so the dead pixel really becomes irrelavant; (b) because it is reddish and doesn't appear on dark background (which is what I almost always have). Though nobody notices the DP, it still bugs me from time to time though, just because I know where it is.
If it weren't those two reasons, I would have just got my money back.