But consoles drop frames as well, people just don't care. You can also not care on PC, like lots of people do.
And hardly no one uses SLI or even recommends it, precisely because it's annoying.
I don't see how you can state that it's any easier to troubleshoot a console. Usually your only feedback is a generic error code which if you Google refers to 20 different problems all with the same error, or an LED blink code which is equally vague.
Sure, PCs have their own unique problems that consoles don't suffer from (e.g. malware on Windows) but I find that PCs typically have much more descriptive error codes, and usually lack the kind of design flaws present in consoles (e.g. Xbox 360 RRoD due to insufficient cooling).
And since the hardware is fixed games don't have incompatibilities. None of the "this version of the driver causes this but that version of the driver causes that" issues. No worrying about system requirements. If it sold for the system, it will play.