Hi All I have a mixed bag of machines also:
Singer 45k1 from 1915
Singer 31k15 with knee lifter and converted from treadle to electrical.
Singer 201k and a few other domestics for zigzag stitches etc.
I am not that good with them, I am on a steep learning curve. But I have been lucky and picked up all my machines at very cheap prices. So it has not been a very expensive hobby yet! I am still after my dream 29k patcher maybe one day if I am really really good.