Even when your macmini breaks ... I think it wouldn't be hard to find spare parts at reasonable cost if not a complete machine.

Broken Efika... throw it away. Broken Pegasos ... it might be repairable ...but at what cost ?

Broken SAM ... as long as it is in his first year, you might get a new one when it's broken... but after that time ? throw it away ...

I still have a ?A1 somewhere with a broken G3 ... barely used and it costed me 800 Euro's back then. I am not going that road a second time.