You can use a PC for other things, I’d need a full desktop PC anyways. Also games are generally cheaper and you don’t have to pay for online play. Once you bought a game, you can very likely still play it in 10 years on a totally different machine.
That being said, there are plenty of situations where a console is the better choice: they’re cheap to buy, easy to use, generally have less software problems, they have cool suspension features etc.