There is no Mach 4 and no Gillette product has 4 blades. The Quattro has 4 blades. I have found that the Mach III gives a much, much, much better shave than a 1 or 2 blade razor. You compare a Bic to a Mach III and I will put money that you get way more irratation on your skin with the Bic. That would be with the majority of people. Some people could use a butter knife to scrape off the hair on their face because their skin is so tough. I have used quite a few razors and the Mach III has been far superior to all of them in my personal experience. People I have talked to also feel this way. It's not about being lazy....as a Mach III saves me no time and I really don't see how it would save you any time. The surface area is the same as any razor...you're missing the point. However, a 5 blade system is overkill. I really think the zenith has been reached. In case you all didn't know, the patent is running out on the Mach III and it has been purported in many places that this is the reason behind the Fusion. With the patent all done, Walgreen's, Wal-Mart and anywhere else can come up with a generic version of a Mach III refill. Notice you see generic versions of all razor refills and razors except the Mach III and Quattro and other new blades. This will change soon. So, bigo, I don't see myself as being "lazy" by using 3 blades. That really makes no damn sense.