I often wonder how various products sort out on this question because while this example makes sense, other ones would not. A common example is ladders. I might

I often wonder how various products sort out on this question because while this example makes sense, other ones would not. A common example is ladders. I might buy more than one because you need two lengths, but I can't imagine many people are frequent return customers for ladders the way they may be for blinds, and I can't think of any instances where they would be back in the market for a ladder that are also realistic (e.g. probably not a lot of people buying all their friends new ladders).