I love the fact that as Singer came out with the better newer machines they always had the toy for the kids that resembled their Moms machines. They are highly collectable and the fact that you have the box and all the stuff with it makes it just that much better!!! I am looking for the 500A and the Genie from the Early 70's for my collection.
Oh and a side note some of the machines had a really nice stitch to them and you could use it for a back up if you do not mind the chain stitch.......
Billy