I have been working with electronics for the past 5 years. Working with digital electronics has not been a problem since a bunch of LEDs and a logic analyzer would be sufficient enough to get things working.
Ever since I started with analog electronics, I was only able to construct circuits on mere assumptions and theoretical formulae.
Due to the unavailability of test equipment here, I had to build my own lab bench power supply. With a need of analyzing waveforms, oscilloscopes have been an essential things which my workbench lacks.
Presently I am working on developing safety instruments for HVAC lines using Mixed Signal Processors and Op-Amps. It has been a year since I progressed with it. An oscilloscope will help me continue with my dreams.