john- i'm not going to argue with what the other fellows wrote but - why don't you figure out how many coins that you average in a year and multiply the approximate money that you would get by four. if that amount is close to what you would pay for the machine that you are thinking of and the new machine has some esthetic value like lightness or something else, then buy it. if i had an eagle i believe that i could talk myself in to tweaking for a long time. wayne