Just Because.
Here is one the worlds most favorite words. sale. It makes people feel giddy. If it is on sale, you almost surly want it. Even if you have no use for it. It does not matter to some what IT is. I have no use for support hose, and yet I buy three or four pair whenever they go on sale. I didn’t need a food processor, or saddle shoes, but I have two processors and six pair of out of date shoes. At least they were on sale.