The repair specialists seemed to be working on actual work orders, complete with paperwork and all. Most of what they were doing looked like simple sensor, body, and lens cleaning. I'm not sure your typical camera owner would be comfortable knowing that complicated repairs beyond that were performed on a trade-show floor.
The display was a little awkward to watch (let alone videotape); literally turning these dudes into sideshows behind glass isn't the most humanizing way to portray your workers. But sealed sterile environments are necessary for proper gadget repair, and the guys seemed content, talking and laughing with each other.