I have no intention of restarting any time soon. With the exception of my Red Version, I don't think I've ever restarted my "main file" once I've started it (and with Red, I only did it because I was able to save my old file to a Mega Memory Card). I grow way too attached to my Pokemon to restart anything on my physical cartridges.
I would like to have time to play HG/SS a bit more before I get B/W (which probably won't be for a couple of weeks), but I honestly doubt I'll have time.