I don't believe so. It's right up his alley if you look at his signature. The iPhone 2G is simply the designation given to the original iPhone since it only had 2G (EDGE) capability and the iPhone 3G expanded on it.
I'd almost get one if it was mint with the box just to say I had an original iPhone. Though the iPod touch 5 will do significantly more, it'll be out dated soon (still runs the A5 chip) and isn't anything special.
What are your intended uses? And would it be better to save the money and invest in something better for the future? Questions you might ask yourself.