As Werner Vogels says “everything fails all the time.” How long can Amazon Retail/AWS, Google/GCP/YouTube, or Microsoft survive without continuously replacing hardware? How much degradation of their service can they withstand as they are unable to replace hardware?
If hard drives fail at YouTube and they can’t replace them and keep up with demand, does YouTube start deleting old videos to make room for new ones? Does AWS stop promising 6 way redundancy across three data centers? When a server goes south in us-east-1 and they don’t have a replacement, then what?