The original question was, I think, partly about whether having multiple razors was functionally better or whether One great razor is enough. I find if I shave with the same razor repeatedly, my skin gets tired of it and plays up. But if I vary the razor, or the settings on an adjustable razor, it seems to give my skin a rest somehow. I don't know why. I always thought that a mild razor could be used indefinitely but I find the occasional super-close shave helps. I also like the collecting and experimenting, but there does seem to me to be a benefit from varying the routine. So I have lots of razors and rotate them. I have lots of vintage Gillette razors and they get used the most. I love the Black Beauty/slim adjustable (and have three, all slightly different). But I also love the heavier ball-end Tech. At the other extreme I liked my PAA Bakelite slant (and regret selling it) and the lethal R41.