How long do keyboard workstations (e.g. Yamaha Montage M8x) last?

I am thinking of significantly downsizing and getting a Yamaha Montage M8x as pretty much my only synthesizer. I've been trying it out at Guitar Center and really enjoy the workflow (not to mention the keybed for regular piano practice). I've never owned a workstation before and was wondering about longevity. Would something like the Montage be good for something like 10 (or even 20) years? What happens if, in 5-10 years time, something breaks. Does this mean I'm out of luck or is there a community of people who can help debug/repair old workstations out there?