Do you really believe that a newer washer actually somehow makes clothes appreciably more clean? Quieter, perhaps, and maybe a little less water, but so much so that you'd ever notice if a persons clothes came out of a multi-decade old machine that's in good shape versus a new one, I would wager you'd never notice, and frankly every generation of machine I've owned, even the expensive ones manages to get worse, harder to repair, and last less and less time. If you've got something that works and doesn't require a dozen elves at some factory in Shanghai or Berlin to do ancient satanic rituals just to replace a knob or repair a switch, I think you'd be crazy to get rid of it.