They aren't "practical" blades, but there's more to life than just practical. It also depends a lot on one's responsibilities and financial situation; I certainly don't consider myself rich, but I make good money for the cost of living in my area, and a confirmed bachelor (I don't think I'd be satisfied with any woman who'd be satisfied with me) with no kids (just a dog named Whoop), so I have enough discretionary income to indulge myself.