Are fibers optics systems expensive?
To find out whether a system is expensive one would have to establish a comparison with an option, which in most cases doesn't exist. To compare fiber optics with a standard off the shelf light fitting, system or lamp is an unfair rule of thumb since fiber optics are unique.
Fiber optics systems can carry large or minute amounts of light to, practically any place along with precision, without electricity or heat and with the light source far away. When the fiber optics system is to be used in applications where the given values were of no consequence then one would have to which there is no need for this.
Fiber optics are not the universal solution to every lighting problems but a tool or a technique to be used in conditions where other systems would be at a disadvantage or even totally insufficient. If one compares a single point of conventional light fixture along with a one-point fiber optics system then the price dissimilarity would weigh heavily within favor of the standard fixture. If we compare some fixtures and one fiber optics system with some light guides and one illuminator, taking in account the power savings and maintenance advantages, then one would have to concede as fiber optics are cheap.