I would have to agree that, in my opinion, that's way too much for the machine given its condition. Yes, it's old, but really in just fair condition overall. The faded bag and taped handle are major "presentation" issues. Also the hose, which should be coal-black with vivid red and gold stripes, is rather faded. Then there's the fact that it's not a complete set.
It's 240 volts which does make it rarer than a standard 110v model but even at that, I can't see where it's worth $1300. But, then, I may be wrong--- there may be those to whom it would be worth that amount and would be gladly willing to pay it.