Just saw this. I'm not big on preordering, but I do plan on buying it on Steam. If it gets bad reviews, I'll just wait for it to drop in price a little.
I like having a digital copy. I usually end up pirating the games that I've already purchased because I like having that backup (in case I lose the disc, disc is destroyed, etc.). I just keep a big text file full of my CD keys in a few locations.
With Steam I don't need to bother doing any of that, which is great. I don't think I'd get any use out of the lunchbox or pipboy... as much as I love to get my nerd on, I'm just not feeling it.