PC players doesn't care that much about Playstation games, we can see that every time they bring a port to pc and they sell really modest quantities
I am not sure about that. Release well optimized versions of Bloodborne and Demons souls and let's see if PC gamers are not interested. Games with replay value and depth do better on PC.
Also, many of these games took months to be fixed and PC gamers are very wary of that. No marketing whatsoever to avoid pissing console fanboys off and a questionable selection of games including sackboy, ratchet and clank and the 4th/5th installments of a saga with no history on PC...
Also as yurika stated above, it's not that console gamers buy games in droves out of magic, Sony needs to spend the GDP of a small country to market them, while a random PS blog post is all they will do for a PC version.
All things considered, games are selling well and will continue selling more dawn the line.