Best MMORPG on the market
You'll get sucked into a fantasy universe and spend numerous hours leveling up and upgrading your armor and weapons. And the best thing about Warcraft is this, you can be a casual gamer and still have a great time. If you enjoy just playing an hour or two here and there, then go ahead. It's also a very solo-friendly online RPG. Many others in this genre focus on grouping which in return makes it hard to have a successful campaign while fighting only by yourself.