hmm i dont know. If we are talking about any big titles, one could argue you would get more precision with a nice gaming mouse than any console controller could offer. Which could make gameplay easier in some aspects.
if you are saying there is more variety with pc gaming, or more niche games you can have that may require more skill... ok, but that's really more of a market thing than pc themselves.
Most people that tend to be the hardcore pc gamers build 1k systems. obv unneccesary, but if you want something that's at least farily good, you are probably looking at around ~550ish. Which is more than double the price of an xbox, which also has the extra perks of being able to be a media center.
Also, most big name games that come out these days are available for both consoles and pcs
There also is something to be said for just chilling on your couch in front of your tv. Rather than having to be sitting at a desk with one hand on a mouse and the other on your keyboard. And yeah I am sure there are 3rd party controllers and you could technically setup your pc to do the same thing a console does, but no one ever does, and I mean, really, who games on a pc with a controller? No one. Pc gaming is definitely less relaxing. I dont know why, just is.