Your previous comment came across as if you were saying he doesn't care what the customers costs are, he just wants to be as cheap as he can to make big profits.you say umm no.. Like I was wrong. Are you not concerned with your investments?
Your cost meaning final cost of the product... How is the final product cost not an expense of the business owner? Someone else funding the project?
Now that may not be what you meant, but thats how it looked.
He was simply saying that such a perception is not the case: that he is concerned about the end result cost to the customer.
If it's too expensive for the customer, then it doesn't matter how cheap he can make them, there is no point in doing it.
Why would he make a cheap liner if the end cost was equal to existing tanks? If he only cared about his production costs?
The only reason for doing something like this is to provide a better product at a cheaper cost. If he happens to make a little money in the process, well that's a good thing.