... it takes a bit of time to get used to the way of playing such a game, learning the tricks of the trade, and finally building up a solid character. That is what I at least find enjoyable.
...for example, you can easily get into situations that are more than you can handle with a level 1 or level 2 character. This means that you have to return when you have more experience or have gained new skills. When you have played for a while, it is rewarding to see the progress you have made and the more understand you have gained about the world the game takes place in.