I know the man who invented the twin-blade razor (when he worked for Wilkinson Sword) and he told me the idea was simply to sell more blades. That’s not to say you don’t experience other benefits from the format.I don’t believe it started that way. I get better shaves from twin blade carts compared to any DE/blade combo I’ve tried too. Now if we’re talking about $5 multi-blade carts, I would agree with you…but only because those razors do not work for me. If I got 20 amazing shaves out of a $5 cart, I would totally be fine using one and WOULD.