As an engineer, I have been using coatings for years for high reliability designs and all parts of a PC would benefit greatly from this. The process is expensive due to environmental requirements, but it adds a huge increase in reliability - if done right. Obviously, you can't coat the connectors, so they are still a weak point. But the tiny SMT solder joints are highly suspect to corrosion, and the are internal metal ion migration defects called CAF defects that are caused by humidity. Moisture also causes surface dendrite growth which ends up shorting over time. Also, all silicon based semiconductors are hydroscopic and are damaged by exposure to moisture, so the sudden component failure after a long usage life can easily be attributed to that. Such as a sudden CPU failure or memory failure. Has happened to me several time in the past. That last hidden benefit is the coatings also give a little bit of ESD survival from the uneducated who install the memory without using an ESD strap. Huge problem in general. ESD is very real and can be attributed to nearly 40% of ALL electronic failures. Read Newegg reviews about people getting parts DOA. They weren't DOA - they zapped them when they touched them taking the parts out of their package. This includes CPUs, motherboards, RAM, HDDs and SSDs, and even some cheap USB drives - which should be ESD hardened but are often not. All very real and not visibly important to those not-in-the-know, but they actually are.