I have had an Elna, 7200, for 6 years and love it as it is problem free. The warranty was for 2 years, I think but I am sure it won't be needed as it is such a solid machine.
Check that the supplier will include a walking foot and a scant 1/4" foot as they are not included per norm in the packages I have seen, n BTW $400 is a good price, but don't tell him that :lol: