I honestly don't care for/collect Ninjago. It's not that I don't like the sets, as I can go on and on about the latest wave with the Dieselnaut and Kai's steampunk plane and all (I love anything with the post-apocalyptic esthetic), but I just would rather save my money for something that matters to me. For instance, the 2019 Ninjago sets. As a much younger kid, the first Ninjago sets were the best. I own all OG and ZX ninja (some in better condition than others), and all the golden weapons and all the golden snake staffs (minus Pythor, if he even had one). But then stone army sets came out, and I fell off the hype train (I blame HeroFactory). Since then, I've only bought/been given Fire Mech, a few Ninjago Movie minifigure packs, and a cool Vermillion little $10 set for Christmas. I just kind of lost the nostalgia value in Ninjago, which is why I'm actually pretty excited for these new sets. I still don't know if I'll pick any up, but they look fantastic.
I also don't collect Technic, as I just don't care for massive vehicles that are only on scale with Constraction, yet don't look the part.
I don't own any Minecraft sets, which could be odd considering how I really still like the game. I like a few, if only for the Snow Golem, but they just aren't my favorite.
That's the major points I wanted to hit, though there are plenty more I could go into.
Also, am I the only guy who doesn't have an opinion in yellow VS flesh heads?