I have a Schwinn bike trailer that I bought roughly 4 yours ago for around $120-130. The trailer has some miles on it but it still looks and works virtually brand new (been well kept and housed in a shed). A neighbor recently moved in and has been looking for one. Since my kids has been riding their own bikes so I have no use of this trailer and I’m thinking bout selling it to them. However, how much should I charge for it?