To add flavor to the world you are creating, quality of life enhancements could be sprinkled in. Like bio hacking which changes eye color / skin color on a whim. Hair follicle manipulation to change color, length, or styles. Perhaps mood altering or emotion changing cybernetic manipulations for personal or business reasons. Not everything has to result in direct statistical benefits. Oh, also Repo Men is a good movie if you want some ideas about what happens when a client can't afford the implant costs.