I guess I'd say my limit is when hubby finally says OK you have enough but he hasn't said it yet so...I now have:
SINGER 301
Singer 500a
Singer 99k
Singer 221k (white featherweight )
70s dressmaker
70s white
50s lenco
1986 singer
1992 bernina 1260
baby lock quilters choice pro
Juki hzl-27z
1917 davis nvf treadle
1873 domestic treadle
Viking designer ruby embroidery
Brother 920d serger