Wasn't W&B one of the biggest manufacturers of razors?
Assuming you know how to maintain a razor and you use it for say 20 years, you pay $500 that's $25 a year. 48 cents a week. Assuming you shave 5 times a week, around 9.6 cents a shave. Factor in they are increasing in value by my calculations around $75 per year, the same razor is now worth $2000. Subtract initial cost of razor, and you are earning 29 cents every time you shave... roughly...