It comes from the fact that the consoles are bad value for money compared to what you can get for a PC of the same price. Plus PC games and servies are much cheaper, and PCs do far, far more than just gaming. Consoles are very watered-down PCs that charge for online and have expensive games.
Generally, in places like Australia or the US, you can build a PC for the same price as a console if you want to, and it will still be more powerful. However, it's usually better to put in
a little more than the cost of a console, because then you get an even better PC. (To get a good idea of how the value works out compared to consoles, the PC Master Race subreddit has a good
page on different ranged example-builds - have a look at the "Next-Gen Crusher" to see a good example of this)
I feel bad for people who live in countries where it's almost impossible to build a computer cheaply. Someone in Canada once told me that it's really expensive to ship in parts for them, for example.
But there are also people who just don't want to spend the time or effort (there isn't too much behind it anyway) to build a PC themselves. That's fine, but some then go on to say that PCs are overpriced because they can't afford a prebuilt, which are overpriced, when building a PC is not.
I personally haven't even built a PC yet, and I still believe it's the better choice than consoles. I want to do it eventually, but I haven't had the time to get a good plan together.
