Re: I keep my comic collection in shoe boxes...
In fairness the pioneer amp I last worked on, the carbon slides still work fine (after a squirt of cleaner) and the mosfets drive better than most sub-£1,000 kit. As for its caps about half had drifted off their values, the rest were still within spitting distance. Replaced the lot anyway, but will change to connectors next time I'm in there too make it easier to maintain.