I recently sold a bunch of 1/43 die cast vehicles here on the forum. I naturally sold them for very little money. Each time I sell something, pack it up and ship it, my wife asks me if I at least "broke even" on the sale. I can honestly answer "Yes, i did". Even though I sold these at a great loss, I used the money to buy something else. In this case, I bought a case of the Menards flat cars. (should arrive next Wednesday). So, the money I received for the 1/43's was equal to the purchase of the Menards flats. So, in fact, i did break even on this sale. It was a bit of a white lie, given the initial cost of the 1/43's, but I don't measure a loss of dollars from a purchase long ago.
I didn't enter this hobby to buy, sell and make a profit. I got into it for the enjoyment of procuring equipment, owning and using it for awhile, and passing it along to another who will spend time enjoying it too.
Does anyone else use this logic, if logic is what it could be termed? Justifying may more closely describe my economic theory. I always said, buy high, sell low, and make up for it in the volume.