What sense does that make? If someone were to switch to a decent gaming PC, which costs quite a bit, if I understand correctly, then they would have to replace their entire collection of games, which again, costs quite a lot. Also, if they have a functioning console that they're happy with, why get a PC? Sure, there's mod support, and the graphics tend to be better, but consoles are still playable, ancient tech aside. So please, enlighten me as to why getting a PC is a logical spending decision, because I'm not seeing it.
If you buy a PC then purchase your game library during one of Steam's major sales, you won't be spending too terribly much (about $1,000).