Reason #2: The Category of Game Selection is practically endless. People can play games from early 1990's all the way until current time and most likely sooner than that if you decided to add a floppy disk drive to your PC however those are rare so you might want to dig up some old PCs if you have one like I do.
Reason #3: The community for older games is rather pleasant to interact with. If you wait until the next game in any given series comes out, The population will dwindle a bit however that isn't necessary a bad thing it just means that the Trolls, Kids, Sexist people and other toxic yet immature people moved on to the next game.
Reason #4: Multiple Stores to buy games online. You have a much bigger selection of stores to chooser from when buying games, Some go with Kinguin others wait for a Steam (Valve's Steam Gaming Service) sale and some rather just go to Amazon and get a copy that route. With a Game Console, You will only be able to choose from one digital store instead of multiple ones that compare and get the best bang for your buck which reeks of a monopoly.
Reason #5: The customization of your PC Gaming rig is all up to you and what you prefer. Instead of opting for the same design of the 9 million+ gaming consoles with little color options, You can opt for water-cooling, RGB Lighting to bring out some bling, upgrade your storage to get loading times that would blow any other game console out of the water and get a Graphics Card that gives you maximum frame rates and bring out graphics that dazzle.