What are applications of cathode ray oscilloscope?

If an analog oscilloscope is used the actual visual performance of a circuit can be displayed. The limitation is hi frequency. A digital scope will outperform an analog scope in digital however the display is fabricated by hi freq chopping. Another scope is a memory scope whereby a sample is taken for further study of a signal it will not change but slowly decay. ALL OS THESE ARE APPLICATIONS NONE IS BETTER THEN THE OTHER