GA aircraft tend to live longer than airliners. It's interesting to look at a scene from a couple of decades ago of airliners and light aircraft on an apron (sadly an increasingly rare sight as big airports shun GA). Most of those airliners have since been scrapped, while the GA types are usually still around.
However, varied though the GA fleet is, for the newcomer to flying and the club hire-er there isn't a lot of choice. Club fleets today tend to be the ubiquitous C152 / PA38 / PA28. Not very inspiring!