I am no native English speaker, but you got the point. Something so successful in business can't be optimal for consumer. It means basically one thing, that if there is analogue for this product, and there is, they are overcharging.
Again, in a free market where there are literally hundreds of alternatives, the consumer -- all 75 million of them -- chose what they felt would be an "optimal" use of their money.
The per capita income in the US is around $50,000. If someone chose to spend about 1.2% of that income on an iPhone -- something they use multiple times per day, that's capitalism working "optimally". Their is market for a product and a producer willing to create it for a price they both feel is fair.