As a Gameboy theft victim I can tell you that there is nothing worse for an 11 year old boy realising that the nice new friend from from his nice new school who has been invited round for the first time, isn't all that nice.
That bastard didn't just steal my Gameboy, he stole all my games to go with it. The Police got involved and it was found that he'd traded it to the to the local pawnshop for cash and a Monopoly set!
His parents bought me a Master System 2 with Alex Kidd built in as compensation. That sounds nice, but at the risk of sounding all Bohemian Rhapsody we weren't the best off and I'd reached that age where I understood that my Mum did a lot of overtime to get me that Gameboy for Christmas. I didn't get games very often, one from my Mum and maybe from my Grandparents on Birthdays and Christmas. So going from a small but loved collection (Tetris, Super Mario Land, Duck Tales, Revenge of the Gator, Super RC Pro-Am) to a single game which I couldn't play all very often as we only had the one TV was heartbreaking.