Once you start to get into TES3:Morrowind, there's no going back.
The graphics are quite dated, but the gameplay is spectacular. There are numerous skills to train and several classes, and hundreds and hundreds of hours of gameplay locked within this classic. These are expanded by community created mods, making it one of the most customizable and expandable games in history.
There are a few flaws, but these are so small compared to the amount of things they did perfect. There are several glitches, but if you really are bothered by it there are quite a few mods to remedy that. The only real reason to not get this game is if you can't stand Lore, or are entirely too impatient to get into the game.
The bottom line is; Morrowind can't be missed by any serious RPG gamer who wants to get immersed in a long, incredible game of high enough caliber to get the Game of the Year Award. Don't miss it!