It makes no sense, but what aggravates me about Gillete is that when you buy the razor and head, they only give you 2 extra razors instead of filling out the package with 4. I suppose it is because when you go looking for a razor, if you had to buy the head and the 4 razors the price would be so high no one would want to purchase it. It's one of those sleight of the hands the companies play that once observed, is infuriating.
It's not that aggravating to me personally--that just means I have three blades instead of five before I have to decide whether to try another razor or buy more cartridges for the same one. I hate wasting or throwing things away, so if I hate the razor completely I won't have to suffer through it for very long if it only comes with 2 more blades.
Really, I'd be happy if it just came with no extra blades at all.