I guess I just have a phobia about the long bobbins. I have an Eldridge that I bought for the beautiful case, never used the machine. I want ONE treadle that I like to use, not 5 (I'm not counting my 29-4). My house is tiny (700 sq ft) and 10 machines is way too much. I just don't know how I have managed to wedge 10 in here.