What happened to the value of MF planes?

The plane in question is an economy class, rather than a premium plane. The
example pictured is better than some of the worst Stanley Handyman models,
but is by no means as good as the premium M-F planes from 1928 to the early
1960s.

A lot of the economy class M-F planes sell for more on eBay than they would
at a tool meet. At about $15 this one would be pretty much at value. The no.
814 and no. 900, while ok for standard carpentry work, were the bottom of
the line. There were also middle grade planes, such as the no. 90 and no.
140, which, in a rational world, command somewhat higher prices than the 814
and 900.

Randy Roeder    Repaint houses, not old tools