I've seen another FW and another 99 just after I got each of them, and was glad that I'd gotten the ones I have. The others were in terrible shape. I'd have hated to have it the other way around!!
What is the date on your FW? Mine is 1939. I didn't get the black case with it, but got a newer green and tan one that the guy put it in. He said that the other case was in bad shape and he threw it away. I'd have liked to have it anyway to see if I could fix it. But I don't keep it in the case anyway. I got a yarn rolling tote from Michaels that it fits in just perfectly. The rolling tote has a lot of storage in it too.
Aren't husbands that look for things like that wonderful!! Mine will come back from a garage sale and say that he'd seen a sewing machine for sale but it wasn't a Singer. I'm just looking at them at the moment as I know the old ones of them are the ones I can get parts for if necessary.