I can only buy used real estate or a car. Everything else I try to buy new. I believe that things absorb the energy of the past owner and do not want to buy things from bad people. Maybe I'm too superstitious, but it's so calmer for me.
If you are so superstitious, even a car and a house that other people used can have another bad aura. This, too, need to look closely. When buying a house I always went and talked with neighbors to find out more about the previous owners. A car should be at all without participation in accidents.