I started shaving with a standard safety razor about 6 years ago. Multiblade razors do a number on my skin. I've never looked for any alternative since switching. The blades (single blade/double edged) are about $0.60/each and for me they last about 10-12 shaves; almost two weeks. I order everything off Amazon. I probably spend $40-50/year on shaving supplies.

Good luck to them though, they'll probably be bought up by CVS or Walgreens or some other beauty retailer when they're ready to plant a flag in the online "subscription" world. This isn't a viable stand-alone business.