Sounds like you like some games others won't, and others will like some games you don't. Surprise surprise.

Indeed.

If you are a board game enthusiast, chances are you'll eventually get bored with basic rules and want something more complicated that allows for interesting game mechanism or complex decisions. If you look at Board Game Geeks top games, a lot of them have a high complexity rating.

I'd note that sometimes complexity comes from surprisingly simple rules, like with Go or Chess. Next to Terra Mystica, Go or Chess might appear simple.

Used to agree with that, then a friend got Risk Legacy which has a 15 game campaign. It took us a couple hours the first night just to go through the rules, but it was one of the most fun experiences of my life and we all bonded from it. 4 years later and those are still my closest friends (excluding my gf).