Sometimes we lose track of things.
As I was working through my third Mass Effect 2 campaign the other day, I was reminded of my first play through Mass Effect 1 in which I had painstakingly developed the perfect version of Commander Shepard. I lost that first save game file, unfortunately, and had to play through ME1 again in order to set myself up for a character import into the sequel. Alas, for some reason, I have never been able to recreate perfectly the masterpiece that was my first Shepard.
I also have a character on WoW that I no longer play, the loss of which distresses me greatly. I created this character, a blood elf gunter, shortly after The Burning Crusade came out. I loved my hunter's name scheme, as he and all his pets had the word "Blood-" prefixed to their names. At that time, I had just begun to play with a group of RL friends who attended the same college I did. The five of us would all bring our laptops to one guy's room and play late into the night. We leveled quickly, each filling one of the roles necessary for running 5-man content. It was a blast, but unfortunately it ended when they graduated.
Eventually I began to play with new people who were committed to the opposite faction. They were already active on a different realm, so I switched and left my beloved hunter behind. I've missed him ever since. Sometimes I think about transferring him to my new realm, but all my characters are Alliance and I don't know anyone on the Horde side. And how could I change him into a night elf or some other race when he is perfect just the way he is?
Do you have any characters that have slipped away? Do you ever think about what could have been if they hadn't?