Why do many people prefer PC gaming over consoles?

For a short time, many people believed that console gaming was better than PC gaming. However, after they returned to the world of mouse and keyboard, consoles were left behind.
For a short time, many people believed that console gaming was better than PC gaming. However, after they returned to the world of mouse and keyboard, consoles were left behind.
In a device where you can't really upgrade anything other than the memory, do console specs really matter?