>>10259630LEL
Castle and Space have been themes since the 70s, where as Bioincle was introduced as recently as 2001. Nostalgia for anything doesn't usually kick into full gear until approx. 30 years after the fact, and Bionicle is only 22 years old. Bioniclefags will have to wait till the 2030s, when 2000s nostalgia becomes economical, and the spongebobfagging truly intensifies. There is a reason why 1950sfagging peaked in the 1980s, and 1980sfagging peaked in the 2010s, and the current state of 1990sfagging.
TL;DR it's too soon for Lego to put much money into Bionicle, and/or make an over9000 piece Harry Potter set.