The other day I was in the grocery store & I made a sweeping pass thru the soaps/deodorant/cologne aisle & I noticed the price on a package of 8 Gillette Fusion replace cartridges. The price was $26 for 8.
Let's do some math.
426/8=$3.25 per cartridge
Now when I was using my Fusion, I could get at least 21 shaves per cartridge with no ill effects.
Now, If you can get 28 shaves (one month) out of one cartridge, it costs less.
If you use a Mach 3 razor I am sure the cost would be even less.
So using a cartridge razor will cost you less than 20 cents a shave.
Some members on this board have said that they could only get 3 or 4 shaves out of a cartridge razor. I find this hard to believe in so much as most cartridge razors these days are idiot proof. I remember I was in a hurry one night leaving work & I used a Fusion Razor with a new cartridge & NO SOAP & shaved my goatee right off. No nick, no scrapes, no weepers. If I can shave a goatee & a weeks worth of stubble off without using soap or cream then I find it hard to belive that someone can only get 3 or 4 shaves out of a cartridge system using canned goo.
Just some food for thought.