I hear your pain. Game shops have always been rip offs with trade ins, and 20p? Can't even get a chocolate bar with that... My biggest regret was getting rid of the Gameboy camera and printer combo. Picked it up in the early 2000s for about £3 and didn't keep it. Even came with the paper included
There's "fuck spez" content in the middle around the 3rd party apps sign, but nothing like it was a day ago.