I think I have a few regrets. I have around 60 machines. I've been buying vintage machines for over 6 years now, and am finally at a place where I know which machines make my heart sing and which ones don't. I've started re homing the ones that don't fit the parameters of my collection or that I have multiples of. I'm only going to keep my favorites, and the most valuable ones which are new machines(embroidery and a long arm).
Cari