During our toothbrush project two years ago we looked into hygiene branch and one evening started to talk about what gillette might do next.
My guess was that they will but mini-vibe in to the shaver. And they did .. even to Venus.
After that Ennu made a joke that they will probably at some point say that "Fuck the others, we're doing Five blades.." And like you can see, now they have done it! =D
It's also interesting how the spare plades are priced. Price difference between the different colors is 2,5 euros. :D