User blog comment:Baterra1202/Why does everybody hate Hero Factory?/@comment-1233616-20100511165733

@Ids: I've heard that Lego wanted to make something new, and out of that need HF was created and Bionicle was ended. First it was planed to end Bionicle, and then to create HF.

The reasons are obvious. Bionicle was a ten year franchise, and by thus it couldn't go to some expositions. It sold well, but the fans that had been following Bionicle since the begging would soon stop buying bionicles. They needed new fans, but it's not easy to get new fans to an old line. It's like if you want to start watching lost from the third season, it will be hard to understand. HF is a new franchise, which won't be bound to a story like Bionicle was, making it more flexible.