The pawn shops now have tons of machines (no pun intended, most of the small ones are around 12 pounds). some of them are in the box with all attachments and instructions booklets, lots for $59. We have Pawn Exchange up here in Washington state and they have many many brands right now.
I use a Janome Platinum ($12) that I bought form$200 on QVC, it is an absolutely wonderful machine. My big one is a Janome 6600 (Adore it!) and I love having both of them use the same feet and attachments.