Went through the same thing
MX I went though the same issue when I finally decided to purchase my PM/PP256. I finally called up and what do you know, they sold the last one a few days before. I was told a delivery date of almost a month away so I waited some more. Finally when I called them I was told that it really would be best to prepay as all prepaid orders get processed as soon as they get their shipment from the docks. So I went ahead and laid down the money and waited. 3 weeks later, a knock on my door, and a new welder was delivered. Stick and plasma work great (still haven't tigged) and just wish I had ordered earlier.
Z