To me.... he's asking dealer price for something that is being sold private. The unit may well be worth that money if bought from someone like Brian because a good dealer will service it totally, check over everything and then stand behind it for at least 30 days.
The Ad does say "Local dealer in Hartleton, Pa." I'm assuming that this is Harry's Repair in Hartleton, however the phone number doesn't match up. Could be a cell phone though. I've picked up parts from this place as it's the nearest dealer from my home at about an hour and half away.