Is the RubyCi marketed, sold, repaired, and replaced as a single unit?

The correct answer is that the RubyCi is marketed, sold, repaired, and replaced as a single unit. This means that it is treated as an integrated whole rather than as individual components. The rationale behind this approach is that systems like the RubyCi are designed to work cohesively, and separating its parts can complicate performance and support.

When a product is sold and serviced as a single unit, it ensures that customers receive a complete, functional device that comes with all necessary components working in harmony. This simplifies both purchasing and service processes for users, as they don’t have to deal with the complexities of individual part replacements or repairs.

This also emphasizes the manufacturer's commitment to quality and reliability, as servicing a unit as a whole often leads to better performance and customer satisfaction. Hence, the RubyCi being marketed and managed as a single entity underscores the importance of its integrated operation in the point-of-sale ecosystem.