I guess for starters it was a Diamond Front, not a Mills Cherry....
I was thinking about both the machines he had and may have made the trip if the Aristocrat was cheaper... The Mills machine has changed its life a few times, probably before the seller had it. E.g., the cabinet has chipboard sides, the handle is wrong and the mechanism is from a later Mills machine. I think this may be a Mill-O-Matic Hi Top machine, with different front castings and base (even the mechanism was based on this machine). I would also question whether the castings are genuine, looking at the shiny metal and MLB reference, but might be wrong.
But as you all say, you can sell anything if you are a hard pushy salesman and slightly mislead people a little to get what you want, which is what most people seem to do.
One of the best honest sellers I have seen selling stuff from this forum were Malcmals machines, very detailed, honest and glossing up the items with lots of superlatives and references to make the buyer really believe they are buying the best out there. Not sure if he uses the forum much now and have not seen many of his machines sell, but certainly made the effort and got his prices, so agree if you put the effort in, you can get those extra pounds.... Never sold a machine on ebay and dreading the day I ever have to.