Whoa! You guys sure are an active community! Most games this old don't have much of a community after a few years.
The game works on so many levels.
It is packed with traditional style quests.
It allows for amazingly diverse ways of playing.
In and of itself, the artwork alone in this game is monumental. Every stone chip on a ruined column had to be modeled and painted. At a max-graphics setting, the outdoor scenery still can take my breath away.
Add to all that, the capacity to endlessly mod it.
Finally, we have a forum with moderators that care and will not tolerate trolls, flamers and spammers. That makes for a community you can come back to again and again. It's a nice feeling.