I've been using a Das Keyboard exclusively since 2014 without incident. Build quality aside, I credit its longevity to regular maintenance cleanings.
https://www.techspot.com/guides/2582-clean-your-keyboard/?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/guides/2582-clean-your-keyboard/?utm_source=dlvr.it&utm_medium=blogger