Not to sound like a broken record, but are you joking? The most technically advanced field troubleshooting I've ever heard of consists of removing all the PCI cards, flashing each to the latest bios, and putting them back in one by one [with the latest drivers] until the culprit is found [and if a culprit isn't found, then you swap out the mobo]. Same principles apply to VCRs, microwave ovens, televisions, 32 bit Compaq servers, and 64 bit IBM mainframes.
I haven't heard of someone soldering a piece of electronics since, like, maybe the Korean War [unless you count all those stereophile gearheads and their Soviet era vacuum tubes].
PS: Totally agree with you on the S-Corp stuff.