The above situation is identical to most other services / situations in the car industry..you pay for convenience.
Take FMIC piping for example.
I work in an industry where we deal with steel sections all day long, and the price of better quality piping than FMIC piping is about $50 worth in the kit. To get someone to cut it and bend it in a workshop ~ $100.
But you're paying for the convience ... are you going to cut it & measure it & bend it yourself for a total of ~ $150 - or pay $500+ for a ready to go kit?
Same as imports..in the end, everyone's trying to get paid, and ignorance / laziness is what sets the bar...