why do people like to solo?

[Invurnus]

I rarely group. XP, loot, and convenience are all better solo, as others have said.

I think part of the social appeal of EQ is not the grouping per se, but the vanity. I was going to pick up a new single-player RPG to play, but I figured I might as well play a game where I could show off the stuff I had achieved. That, and sometimes single-player RPGs are rather lonely endeavors.