I figure in an enterprise setting, machines get replaced within a few years? I simply don't trust these latest machines to last without a particular issue happ

I figure in an enterprise setting, machines get replaced within a few years? I simply don't trust these latest machines to last without a particular issue happening. There's a fair amount online from the repair shops guys who are repeatedly encountering this issue. It seems like some kind of buck converter fails earlier than expected due to being run closer to its limits, and when it goes it dumps 13v into the SSD chips, destroying them, and bricking the machine, requiring SSD desoldering and component replacement, which isn't cheap or easy to fix. What % risk is unknown, but if the failure appears to be MTTF being reached early, then the longer I hold onto the machine the more likely I will encounter the issue and I don't fancy the risk... My 2012 11" MBA is still absolutely fine, its the machines after 2016 to now that have the same issue.