Good night, why do the fairings cost so much?
You don't want your "cheap" fairings developing a pinhole while being hurled through the atmosphere at great speed; this obliterates your ultra-expensive payload.
If that's the case, what makes the materials so expensive?
Although I think the best result is that they get an much more detailed look at how their rocket parts are performing. Telemetry is great, but when you can inspect the actual part you can improve on things that may end up being a problem down the line. That's how block 5 boosters came about for the most part.