Best RPG that didn't make the list: Numenera.
So, why should you be playing tabletop RPGs? They certainly don't provide the kind of instant gratification you can get from a CRPG or MMO. They take a lot of work, in fact, particularly on the part of the GM. And there can be a lot of frustration when the expectations of the players are different.
However, there are some advantages to tabletop RPGs you can't find anywhere else, at least not together. First, it's a great reason to get together with your friends and a terrific opportunity to make new ones. Obviously, there are lots of ways to do that, from board games to multiplayer videogames to joining a darts league. However, tabletop RPGs also allow you to exercise your imagination and cooperatively create new stories and worlds in a way that no other social experience can equal (except maybe LARP, which is a whole other discussion). You can explore themes relating to politics, religion, wealth and poverty, crime and punishment, etc. from a perspective removed from our modern world and maybe see things in a new way.
Or, you can roll some dice, eat some munchies and bash monsters in the noggin for a couple of hours, which can be pretty darned satisfying.