So far barny is the winner, with me at second and shawman in third. I have my 1961 Kenmore, though it is not currently in the rotation. I also have my 1973 Elna that never been out of service a day in her life. Right now she's appliquing a floral panel for a quilt pieced on a 1956 301.
The 301 was purchased 1 1/2 years ago when I started quilting. In the last year I've added a 1952 Singer blackside 128, an Admiral, an Universal and a 15 clone (a MW) from the 50s and a Necchi from the 40s plus a 1928 Leader treadle and a 1918 Redeye treadle received as a Christmas present. Yikes!