I'm wanting a midarm myself - I saw one at Paducah which sits happily on a table, although you can use it on a frame too.
And hearing the same thing from others about newer sewing machines, such as "Those old all-metal Singers were great, the newer ones make great boat anchors." I was given a 1955 Singer 301 which was used by a woman who made curtains and slipcovers. It has the same bobbin case as a Featherweight and still runs great. However, it can't handle the shifting tension problems that crop up in FMQ. I took it to a class once and demonstrated that I COULD do FMQ on it (it took a bit of rigging to get the hopping foot I found to work properly) and the person teaching the class was amazed the machine could do it. Currently doing a 4th quilt on a Husqvarna Emerald 118... long story, not happy with the results of service at the dealer's.