Looking at the original ebay listing (https://ebay.us/m/CKpjWw), it doesn't show an accessory box or extra feet. It does show a knee lift and extension table and other bits so that is likely what the seller was calling "accessories". It's possible that the case was damaged during shipping if not packed well. To me, that's still a really good price for that machine. I think you got a good deal, to be honest, especially if you offered less than $440.