The Raspberry Pi can just be used as a small computer – but the really interesting thing is the opportunity to do experiments with self built electronic circuits. For this a breadboard is quite helpful.
I already had been interested in electronics before I had my first computer – later I drifted off this topic a bit, but the tools (soldering iron, multimeter etc.) still exist and sometimes I also work on circuits as on LCD2USB am FLI4L.
I’m also in Berlin from time to time and sometimes I also visit the shop of Conrad Elektronik – since something like this doesn’t exist in Augsburg and sometimes I’m also just a nerd ;-).