Back in 2000-2001, I got a Duo 2300c new-old-stock for $100. At the time, it was the most I had spent on a vintage computer. (Since surpassed by my NeXTstation and Mac 128.) I used it as my "daily travel work notebook" for a couple years, just for fun. (Until I bought a 12" PowerBook G4 new soon after it was released in 2003.)