What is one of the primary advantages of using a jobber in library services?

The primary advantage of using a jobber in library services is that all items come with the same level of technical processing. Jobbers are suppliers that provide libraries with pre-processed materials, which means that items often arrive fully cataloged and ready for circulation. This uniformity ensures that patrons can access materials quickly and consistently, reflecting a standardized level of quality and detail in cataloging and processing.

Utilizing a jobber not only saves time for library staff but also streamlines operations, as they do not need to spend additional hours on cataloging. This can effectively enhance the efficiency of library services, enabling staff to focus on other important tasks such as outreach or user services.

In contrast, the other choices highlight aspects that do not align with the primary advantages of working with jobbers. For instance, "increased local cataloging time" contradicts the efficiency jobbers provide. Similarly, "variety in technical processing levels" does not represent the uniformity that jobbers typically offer, and "enhanced user interface experience" pertains more to digital services rather than the specific processing standards of physical items received from a jobber.