Not only are we socially conditioned to prefer new, as you point out, this is further reinforced by the necessity imposed by disposable-quality products.
My first sofa was a turquoise leather 2½ seater bought for €100 from a municipal charity shop. Impossible to resell it turned out, but still in excellent condition we had the municipal charity shop in our new town pick it up (they sold it pretty fast; this is one of those sofas you have to see in a store to say “hey, this could work for me”).
Our present sofa is an ox-blood 2 seater Chesterfield-type one bought for €400 from a piercing shop which had it for waiting customers for only a brief while. Excellent condition and likely to last us another decade at least (if I didn't have a child I would be more sure about it lasting my lifetime).