I can't speak for others, but what always irked me about the situation with inkjet ink is the sheer dishonesty about the pricing.
Cartridges of ink costing upwards of $30 a shot is just so obviously bare face extortion it just leaves a really bad taste in my mouth.
But then the economics of an awful lot of things leave me speechless.
Take opticians. Typically, there are three costs associated with getting glasses: examination, lenses and frames.
1) Examination - time with a (hopefully) qualified professional to get a full check up, and expert opinion and a prescription for new specs if necessary. A one-off service would surely be the most expensive part of the whole process.
2) Lenses - largely made by machine these days but they are custom parts made for the customer. Surely, the second most expensive part.
3) Frames - standard items manufactured in the thousands in factories in China for the most part. The costs of these would be *by far* the cheapest.
So what do we have by and large? Free examination, cheap lenses and absolutely extortionate frame costs. It beggars belief. I couldn't work in one of these places. I just couldn't look the customers in the face without extreme embarrassment.