Richard,
that's for sure. Also a limited market for vintage built in appliances when people are spending up to tens of thousands of dollars on a new kitchen remodel.
Most are shopping at Sargent appliance or Hawthorne for either Viking, Sub Zero, Thermador, Miele, DCS, Dynasty, U-Line, or at the very least High end kitchen Aid.
Not only the Grosse Pointers either. All up and down Jefferson avenue in the Shores clear up to where you live. Then there are the west siders in Bloomfield, Birmingham, and Franklin.
Now for a larger cottage up north, maybe more interest.
My aunts 1960's Tappan 400 gas range ended up converted to propane in my uncles cottage up north.