Comment by donavanm

Not quite. Hardware with customer data or corp IP (eg any sort of storage or nvram) doesnt leave the "red zone"[1] without being destroyed. And reusing EOL hardware is a nightmare of failure rates and consistency issues. Its usually more cost effective to scrap the entire rack once its depreciated, or potentially at the 4-5 year mark at most. More revenue is generated by replacing the entire rack with new hardware that will make better use of the monthly recurring cost (MRC) of that rack position/power whips/etc.

[1] https://www.aboutamazon.com/news/aws/aws-data-center-inside