Well, if that is the case, wouldn't you eventually end up with a trimming that would shortly die, simply because the orginal plant has reached its end-of-life cycle?

In terms of value, the closer a trimming is to a seed-born plant, the greater its potential for longevity, right?

One more... Aren't there plants that propagate by runners? Are there fundamental differences in runners compared to trimmings? Is each runner truly a new plant?