I regularly buy and sell machines and peripherals. This is not a profit making activity for me; it’s just an important part of managing my hobby.
The temptation is to acquire an ever greater number of machines, but i only have so much space. I now sell/give as much as i buy/acquire. It’s not a profit making venture. I try to recover my costs, but that’s not always possible. In this hobby we have to accept that sometimes we pay for the entertainment value of constructing, restoring or embellishing a machine.
I will post items that are for sale on this site, but i would rather sell low than go through the hassle of postage. Typically, i prefer pickup either at my shed (Cockatoo Valley SA) or at a monthly ARC meet (Unley SA).