Is why most people do an everyman do everything first character, then later after they did everything they limit themselves to vary the game.
Maybe it's because this is my third Elder Scrolls game, but this time I'm actually doing the opposite. I've already decided to never join either the thieves guild or Dark Brotherhood, despite how much my character's skills might jive there, for character reasons, and I have vague plans for a future character that will go full tilt with those quests, similar to a completely immoral character I made in Oblivion. I also only did the College quests far enough in to get an item I needed for a side quest, and have no real intention of returning. I'm perfectly happy keeping actual direct magic a weakness of Draug Stonefist. But I already have plans for a Harry Dresden homage character who will go full tilt there, but ignore all other guilds.