by keeping costs low, and an almost non existent marketing budget, well i suppose time spent on here is expensive really, it gives an unbeatable cost operating base.
At the mo he has a two year technology lead over the other guy's although they are starting to catch up and catch on (glider pole etc). but should it ever come to a price war he can chop it by half and still have a smile on his face.
In fairness though setting a price must be hard- the stuff on web is probably double up, so self procured might be three times and this sounds like money for old rope, but a lot can go wrong or need reengineering and i suppose that some customers just like us actually cost money.
All the same, as we are all mates, and don't want to pay over the odds at some show you'd think he would do them a bit cheaper.