The thing that gets me bored (and frustrated) is the wait between new supernaturals. I mean, they really dragged things out with that! The wait between Aliens and Vampires, then between Vampires and Mermaids and Spellcasters was just plain insane! They'd better be coming out with Werewolves sometime next year, because I've been waiting on THEM since launch day!! (And, no, I don't count these wilted "Plantsims" they gave us. Temporary status effect...pheh!)
Sorry, but I like a lot of magic and sci-fi stuff going on in my games, and the long stretches of nothing but slice-of-life additions inbetween the good stuff just kill me...