Nope, my hubby is a mechanic and his keyboard looks exactly the same. Auto shops produce a unique grime that gets on everything and is super damn hard to clean off.
maybe mechanic grime built up over years acts as a protectant...
Missing Novell server discovered after four years
No one noticed for four years, until they did a network audit. The server ran fine all that time.
There's also the 200 MHz homebuilt Pentium server than ran for almost 19 years:
Server retired after 18 years and ten months – beat that, readers!