When I got my first PC, a Tiny Computers 350mhz Pentium 2. Consoles were about at the time and had some good games, but back in 1999 you truly couldn't beat PC gaming. Classics like Quake, Half Life, Deus Ex and so on all PC exclusives.
These days I love it because it's so varied and it's free of the faff that comes with Xbox... no need to see 35 adverts before you launch the game, ability to run it without the disk, the modding community... it's just more flexible and more interesting, full stop.