If you don´t get bored, who cares? Everyone can play their game in a way that makes them happy.
My sims tend to have kids (because one of the things I love most is the moment of "how do they turn out?").
I created two sims to be adventureous to really explore WA. They have now four children and live in Sunset Valley. I think, they were in China, once. I got bored of the quests and the skilling and the tombs kind of scared me. So they ended up being domestic, and that seems to be the way that I play.
I love supernaturals, most of my families have them. Still trying to get more hybrids, only have one alien/vampire yet. A fully skilled witch can raise the dead and make them alive again.
The game often gives me surprises and ways to go, like inapropriate elderly Teagan MacAnna kissing one of my sims at a party in my legacy save, and him going completly bananas for her. So a youth potion had to be made, ingrediences had to be found, to make Teagan young again to have children. She dislikes children. It was fun.
High free will and trying to fulfill the wishes of my sims often have interesting results. Nraas storyprogression makes my towns alive.
My sims are happy most of the time. Making them happy makes me happy. Wow, yes, that also sounds boring. :D