The 66 models are very common where I live, so I wouldn't pay more than $80 for them, even if I was "looking" for one. Unfortunately since they are both in "borrowed" bases , the value is less for collectors. And the added motor on the Red Eye doesn't attract me either; I would rather it be in a treadle cabinet if I wanted a Red Eye. I have a 1942 66-16 in pristine condition with the pretty decals vs the Godzilla finish, with an equally nice cabinet, that I got for $45. It's not my favorite machine compared to my 15-91 or my 201-2, so I don't need another 66.