Here are some figures for you to chew on. But before that, let us set the scene for this by taking a moment to contemplate the image on the left. It is a so called tag cloud, taken from the leading international straight razor shaving forum, the Straight Razor Place.

1. Remember what the most popular thought-terminating cliché of so called honemeisters  is when someone comes up with an off-the-beaten-track idea or question?  "Thousands of razors honed !!!!!!!". They say that if you always do what you always did, you will always get what you always got. This wisdom  most certainly applies to straight razors. On a more frugal note, honing by honemeisters costs about USD 20. Thousands of USD 20.
2. A skilled honer will bring 90% of all razors to shaving sharpness in less than 10 minutes. USD 20 x 6 = USD 120 per hour. Whatever the tax is on  professional services, that is good money.
3. Inquiring minds  wanted to know what people other than US honemeisters cum online shop  consider shave ready. Interestingly, opinions did not vary too much,  and, 'most razors come shave ready without additional honing.'  Naturally, there is always room for improvement, but just like some  people perfer Feather or Personna to Merkur DE blades, some people  (quite a few I know, actually) prefer edges of Coticule hones with CrO  over those off synthetic hones with diamond spray. Then why are  synthetic hones and diamond spray so popular? Simple:
   1. Synthetic  hones deliver fast, repeatable results, the stress being on fast,  because natural hones deliver similarly repeatable results if you bring  the necessary skills. Synthetic hones also bring good profit to whoever  sells them, because you need so many of them (of course, a Norton 4/8k  combination stone for USD 50 or less will work perfectly if you  finish on a USD 10 barber hone or a balsa paddle strop with CrO, but the honemeisters use Naniwas or Shaptons, so who would not want to work  with the equipment the pros use...).
   2. Diamond spray delivers even faster results. Incidentally, it also introduces nice double bevels  because even the felt paddle strops are not as even as a hone. Double  bevels are not a problem per se, which is why many people add additional layers of tape to their final stage of honing. Incidentally, however,  the same people who are the most vocal opponents of taping the spine are also those supporting diamond spray (or similar abrasives). Being such a fast cutting medium, diamond spray will also quickly bring an edge into a state where it actually needs honing, and for bevel setting purposes. Unless you are a skilled honer, this means another razor to be added to the "thousands of razors honed !!!!!!!!!!!!!!!!!!!!!!!".
4. Try to find out the purchase price of new production razors. Trust me, you  will find a very unpleasant surprise where you least expect it  (no, not Revisor or Wacker, but close). A markup of 642% will make  weapon dealers blush.
5. Did I mention so called restoration work  yet? It is a segregated niche market. There are people who restore  razors (ie bring them back to their original state), and there are  people who customise razors (often using coloured scales and so called  visual enhancements). The funny thing is, these customisations can bring you money, too. Several vendors are offering rescaled Henckels Friodur  razors these days. At interesting prices. Interesting, because according to a double checked trusted source, there are several thousand of these blades in the market. Yes, they are Henckels blades, and Friodurs, too. They are good blades. But their prices go up 75-150% if they come with  custom scales. This means that there is even more money to be made by  making custom scales than by honing razors.
6. Now, imagine what a  nice source of income it would be if you could combine honing and  customistion services - and did not even have to pay for the  advertising. Then take a look at the image again. Then you will begin to understand why SRP is short  of one developer.