Hi I have a Janome Memory Craft 6000 that I have owned since 1982 I paid 1500 for it at the time and noticed recently a used one similar vintage for 530 dollars. I also own a singer 222 which is a featherweight /featherlight from 1957--has a removable arm. I learned to sew on that machine and my brother very kindly gave it to me when my mother died. It is still in excellent condition and works like a dream.
I love both machines for different reasons.
Good luck shopping