Y'know, I remember when replacement blades for twin-bladed razors cost about $5-7 for a half-dozen.
Then Gillette tricks everyone into thinking they need 3-bladed razors, for which the replacement blades cost more than $2 each. Then they start selling 5-bladed razors (some of which are battery powered) for more than $3 each.
As if that weren't bad enough, now they're trying to convince us that we need to shave our entire bodies and not just our faces? It's a racket, guys. Don't fall for it.