From my first visit to Ultima Online in 1997, the huge, live world of Britannia has captivated me.  Simple interest turned into a lifetime obsession very fast.  Every chapter has been full of wonder, from mining in the wilderness to handicapping in small villages, from fighting monsters to creating lifelong friendships.  The magic never faded through several updates and revisions.  For me, Ultima Online is a timeless trip currently ongoing now, not only a game.